Proximity-Sensor for Speed Relay FRMU 1000.3-wire-connection PNP brown =+, blue = -, black = Anickel-plated brassflush-mounting possiblemax. 48.000 IPM (800 Hz)max. switching distance 4 mm (recommended = 3 mm)Connection cable pluggableintegrated protection against reverse polartityLED for state of outputConnection CablePlug M 12, angledLength 5 m, 3 x 0,34 sqmmPUR cable sheath 

The FRMU1000 is a speed-monitor, a frequency-monitor and a measuring-transducer in one device.2 limits with 1 relay each can be programmed for under- or overspeed, under- or overfrequency or each monitoring of a range (min/max).The input for monitoring of speed can evaluate signals from proximity-sensors 2- or 3-wire, npn- or pnp. The display can be scaled. Thus the real speed of a shaft can be displayed, even though there are several pulses per revolution, e.g. from a cogwheel.Application as Frequency-RelayMonitoring of frequencies in mains 16 2/3 to 400 Hz on maintaining a range (min/max).Application as Speed-RelayMonitoring of overspeed or underspeed, each with pre-alarm and alarm, monitoring of maintaining a range (min/max) or monitoring of stop at machines and equipment, e.g. at conveyors, escalators or lifts or for monitoring of drive-belts.Applications as Measuring Transducer (FRMU only)In addition, the FRMU can be used as measuring-transducer to convert the input-signal into a standard-signal 0/4-20 mA or 0-10 V. 

The STWA1H current transformer is made to match the current-relays for recognition of AC-current and for controls for deducting plants type STW. Above app. 2 A the built-in LED lights and indicates a current. A current-relay type STW or a LED can be connected to the terminals.The STWA1H has been designed for mounting in a switchgear cabinet. The housing can be fixed on a DIN-rail or with 2 screws. The maximum diameter of the monitored line is 11 mm. The current is only limited by the diameter that can be lead through the transformer. The electrical connection is made via screwless pluggable terminals.connection to current-relays type STWindication with LED from app. 2 Aindication of shortest current-pulsesBuilt-in resistor to protect LEDno supply-voltage requiredelectrical connection via screwless pluggable terminalsplug-in current transformer (Ø 11 mm)

In the control technology of today, the number of industrial PCs (IPC) partly with decentralized intelligence constantly increases.Individual processes are controlled independent of each other. In case of failure or malfunction of one component, it can therefore be necessary to switch off the hardware of a complete machine or plant.Time-Relay WD100V is used to make sure that because of malfunctions in the program flow, caused by short-term voltage interruptions for instance, no undefined status are created.Changes Z224317 --> Z224319: input 5V, maximum pulse length up to 10 s, better temperature stabilityOverview of functions:Input-signal 5/24 V DC square waveMinimum pulse length 500 µsMaximum pulse length 10 sMonitoring of positive and negative slopesWatchdog-time = Time x Scale (1 ms-10 s)Display of state of function with LED (Alarm)Reset with external contact or switchUniversal power-supply AC/DC 24-240 VRelay-output (1 change-over contact)

Recording of welding currents (mounting at ground wire) for controlling dedusting plants in combination with ZIEHL-controls type STW. Recording the state of a consumer of electricity (on or off or defective).In general the current-sensor S1 is used where the current-flow is to be detected, with the exact value of the current either known from the power consumption of the connected consumer or does not matter for the evaluation.For evaluation of measuring data in more than 1 cable, these outputs of several current-sensors can be connected in parallel (OR-evaluation).switching point app. 5 A (option: adjustable 5-30 A)monitoring of AC and DC currentsLED for current flowmounting without disconnection of cable possible2 transistor-outputs, switching + and -, direct connection to a PLC possibleconnection to current-relays ZIEHL type STWrobust, sealed executionoverload capacity: unlimited

The basic function of the device is to detect whether a current is flowing in the supply line of one of several woodworking machines. If a current flow is detected, the device opens a valve on the machine's suction channel. At the same time, the extraction system is switched on. When a machine is switched off, the device closes the associated valve with a delay. If the last machine is switched off, the extraction system also stops after a delay.The current relay STW81V is an 8-channel AC current relay, designed for controlling of suction plants e.g. in the timber and plastics processing industry. When there is an AC-current >1A through one of up to 8 connected transformers type STWA1, the appropriate relay K1...K8 (1 x co) picks up and opens the slide valve of the machine. At the same time the relay K9 starts the central suction.Relays K1...K8 switch off 10s after the current flow through the appropriate transformer is 0. K9 switches off 0...60s (adjustable) after the current in all transformers is 0.ApplicationThe current relay STW81V is particularly suitable for the central control of slide valves in suction plants, which are to be operated dependent on operating condition of individual machines. It can control a central suction at the same time.single evaluation of 8 inputs with STWA1single evaluation of 8 inputs with current-sensor S1inputs for 8 potential-free contactsOR-evaluation of all circuits (K9)9 output relaysLED display for relays / inputsSwitching point adjustable 0,5 - 5 Aswitch-off delay of K9 adjustable 0 - 60 secondsswitch-off delay single relays 10 slast relay: K9 + 20 s

The NS level monitor is an electronical device for monitoring Liquid levels. They can be used as limit monitor or minimal-maximal control. The monitoring of liquid levels is effected via electrodes.ApplicationThe NS units protect aggregates and plants against dry running, overflow, leakage damages and unnecessary lost of liquids. Characteristical applications are swimming pools, groundwater endangered buildings, oilfilled under-water-pumps as well as whereever a certain level should be maintained resp. dosed.FunctionThe level capture is effected through resistance measurement via an AC voltage measuring path, operating completely DC voltage-free. Hereby, the resistance between two (resp. three) electrodes is measured. When the level increases, the electrodes are bridged and an integrated relay switches.The level monitor operates as conductivity measuring device and guarantees a perfect level capture at a resistance of up to 250 kO, measured between the electrodes. ZIEHL level monitors are also available with adjustable time delay in order to avoid a too high relay switching frequency in case of a moving water surface. As electrodes any conductors, that jut into the tank down to the required level, can be used. At metal tanks the wall of the tank can be used as basic electrode.Electrode NE1Insulated screw-in electrodes for mounting in walls of tanks. The electrodes are made of stainless steel (V2A), the insulation material is Teflon.

The vibrator control RS1K is a compact multiple time relay for triggering of vibrators in suction plants. In order to be able to operate suction plants at an optimum, the filters which get clogged by sawdust, chips or dust, have to be dedusted by vibration from time to time. The vibration action is by no means to be carried out the suction running or while slowing down the ventilator. If suctioning is started during vibration, the process is immediately to be interrupted. Prior to starting the vibration action, an adjustable deceleration time is running to delay the ventilator before start of vibration. This means that short stoppages can be bypassed without being obliged to carry out a vibration every time.Start of deceleration time by break contact at Y1/Z0 (e.g. from contactor suction motor)Starting of deceleration time through current transformer STWA 1 at Z0/Z1 (e.g. L1 from suction motor)adjustable deceleration time 1...30 min.Relay K1: continous vibration 20 s or impulsevibration 18 s with 3 s clockRelay K2: impulse-vibration 40 s with clock 0,5 s or 0,8 s (for magnet valves)LED (red) signals deceleration timeLED (green) signals vibration actionautomatic interruption of the vibration action when starting the suction process.

The level monitor NS43 regulates the level of liquid in a container between 2 electrodes. In the normal operation the level of the liquid is situated between the electrodes E2 and E3. The relay K2 tightens, if the level E3 is achieved and drops, if E2 is fallen below. Over the output contacts (1 change-over switch) a pump or a valve can be controlled depending upon case of application and so the level be regulated.If the level continues to rise in an incident and if the electrode achieves E4, then a message takes place via relay K3 (drops). In the reverse case (level under E1) the relay K1 drops and protects e.g. a pump against running dry. LEDS signal, which electrodes are moistened.Level monitoring of leading liquidsMIN/MAX level regulationprotection from overflowprotection from running drysensitivity adjustable 5...250 kOLED for level display / alarmApplicationIn the galvanotechnics and everywhere, where the level of a leading liquid must be held on a certain level and at the same time a monitoring on overflow and/or no-load operation is necessary.

The basic function of the device is to detect whether a current is flowing in the supply line of one of several woodworking machines. If a current flow is detected, the device switches on a suction system. When the last machine is switched off, the device stops the extraction system after a delay.Current relays in OR evaluation with 12 inputs, designed e.g. for controlling of suction plants in the timber and plastics processing industry.Recording of current is made with current transformers type STWA 1, current-sensors S 1 (DC also) or potential-free contacts. When there is an AC-current higher than the set response value (setting range 0.5 - 5A) through at least one of the connected transformers , the integrated relay (1 NO) picks up. If all monitored circuits are switched off or the current falls below the set response value by approx. 0.3 A, the output relay releases after the set time delay (1 - 60). Due to the adjustable response value, the user can permit lower currents without releasing switchings. Thus, for example, a machine can be switched on in order to adjust its electronic settings (low current via transformers). The STW will only switch on when the main motor has been put into operation (high current). Due to the adjustable switch off delay an easy adjustment of the follow-on is possible.Current monitoring of up to 12 currentsInputs for current transformers STWA 1, current-sensors S1 or potential-free contactsAdjustable switching point 0.5 - 5 AAdjustable switch off delay (1 - 60 s)Plug-in terminalsUniversal supply-voltage AC/DC 24-240 VHousing for mounting in switchgear cabinets or fuseboxes, 70 mm wide, mounting height 55 mmApplicationZIEHL current monitors in OR-circuits can be used particularly where dust, fumes and gases are generated by various electrical devices, and where these must be extracted by a central suction system. Due to the integrated delaytime the follow-on of the suction is controlled.

The STWA1 current transformer is made to match the STW current monitor. One current transformer is required for each line being monitored. The STWA1 consists of a climate-proven sealed-in coil with toroidal tape core. The connection cables are permanently fixed to the transformer and are 1 m in length. The level of the current to be monitored is limited to 100 A continously, 300 A for max. 10s.In case of current of more than approx. 5 A, an LED can be triggered directly via the STWA 1 current transformer. Thus it's easy for users to visually monitor the current conduction in a line. The LED is protected by an anti-parallel diode or by its connection in series. A protective resistor is necessary depending on the LED used or the level of current being monitored.Weight: approx. 43 g

The electrode NE2 with its ½" thread can directly be screwed into the wall of a tank. The two electrodes (stainless steel V4A) are flush cast in a plastic housing (Polypropylen, PP) with cast resin. The electrode can be used in a temperature-range -5…+60 °C and is pressure-resistant up to 6 bar. The ingrained cable with 2 strands, each 0,25 mm2, is 2000 mm long, Ø 4 mm. For one level only one NE2 is sufficient. For use with a level-monitor for more levels, normally one NE2 per level is required.

The STWA1S has an integrated electronic with transistor-output. The switching point is 2 A. Above app. 2 A the output transistor is switched on (LOW), below app. 1.5 A it is off (HIGH). The conductor is simply pushed through the transformer.Multiple loops reduce the switching point correspondingly, for instance to 0.5 A with four loops. A supply voltage is not required.ApplicationThe STWA1S is used where current flow is to be detected, with the exact value of the current either known from the power consumption of the connected consumer or does not matter for the evaluation.For simultaneous evaluation of the current flow in several conductors the STWA1S device can be connected in series (AND circuit, pay attention to the voltage drop) or in parallel (OR circuit, pay attention to the leak current).isolated transistor-output max. DC 40 V/40 mAoutput can be directly connected to the digital input of a PLCintegrated diode for reverse voltage protection2-wire-connection, 1 mno supply voltage requiredtransformer and electronic unit enapsulated in a climate-proof housingplug-in current transformer (Ø 11 mm)max. overload 100 A continously, 300 A / 10 s

The basic function of the device is to detect whether a current is flowing in the supply line of one of several woodworking machines. If a current flow is detected, the device opens a valve on the machine's suction channel. At the same time, the extraction system is switched on. When a machine is switched off, the device closes the associated valve with a delay. If the last machine is switched off, the extraction system also stops after a delay.Control for extraction systems with connection slide valve via bus, control of up to 32 sliders via bus lineApplication:The STW164IP serves as a central control unit. It detects the operating status of the machines by measuring their current consumption in the supply lines (current transformer STWA1(H) ) or via potential-free contacts. It switches on the central extraction system and opens the shutters on the ducts to the individual machines. 8-fold shutter modules are used to control the shutters. These can be mounted next to the STW164IP or distributed throughout the system. The latter reduces the amount of wiring required.Additional shutters can be opened to optimize the air flow. They can be assigned to different lines and prioritized. It is also possible to control cleaning and discharge.Parameterization is conveniently carried out via the network (Ethernet). If the control system is connected to the Internet, it can also be parameterized remotely.Recording the operating hours of the machines and the switching frequency of the valves provides valuable services for preventive maintenance. This means that components can be replaced during a service call before they age and fail.Accessory: Front Mounting Kit type ER8 for mounting in control panels or doors

Economy-priced probe with integrated measuring transducer for measuring filling level e.g. in tanks, cisterns or waters. Connection to ZIEHL-Web-Relay TR800WEB for monitoring and logging of filling levels. Alarms by emails when levels are reached, e.g. before tank is empty. Monitoring and display of levels with Digital Panelmeters MINIPAN 352 or other devices with input 4-20 mA. The probe for relative pressure is submersible. It is placed at the bottom of the tank and determines the level by measuring the hydrostatic pressure. The result is transmitted via signal 4-20 mA (2 wire). The cable (PUR) includes a pressure compensation capillary that compensates fluctioation of atmospheric pressure.Applications:Gasoil, diesel, used oilengine oil and lube oil (fresh)Rainwater in cisterns, basins and water levels in general

Level-Relays NS20K for conductive liquids can be used as monitors for 1 Level and for controlling a level between 2 electrodes.3 elektrodes for MIN/MAXcontrol2 elektrodes (E2 open) as level monitorSensitivity adjustable 5 kO…250 kOLED for state of relayFunction of relay reversible (picks up or releases at top electrode)Switching-delay adjustable 0,1…10 sHousing 35 mm wide, mounting height 55 mmUniversal supply-voltage AC/DC 24-240 VApplication level monitorProtection from running dry or overflow, monitoring of pumps for leaks, detection of leaks.Application Min/MaxControlling a level between minimum (electrode E2) and maximum (E3). As long as E3 is dry, a magnetic valve is opened (or a pump is running) and liquid is influencing. As soon as maximum(E3) is reached, the NS20K closes the valve. When the level falls below E2, the cycle starts new. In reverse also discharging of a container can be controlled.

Bus module for controlling sliders in extraction systemsSTW161M and STW168M bus modules control gate valves in extraction systems in conjunction with STW164IP control units. The wiring effort is drastically reduced by the bus technology.Application:Control of extraction systems in the wood and plastics processing industry in accordance with the Technical Rules for Hazardous Substances TRGS 553. The central automatic start-up switches the extraction system on as soon as a machine is put into operation. The shut-off valves in the extraction ducts of the individual machines are controlled via STW161M bus modules. DC 24 V is available as a signal. If required, the bus modules can also monitor the function of the shut-off valves (input for end position reached) and record the operating status of the extracted machine (on/off) via STWA1 current transformers or potential-free contacts and report this to the central control system.

Bus module for controlling sliders in extraction systemsSTW168M and STW161M shutter modules control up to 8 shutters in extraction systems in conjunction with an STW164IP control unit. Up to 4 STW168M units can be combined with one STW164IP control unit. They are simply mounted next to the STW164IP in the control cabinet. Alternatively, they can be placed near the slide valves. In this case, the module only needs to be connected with one bus cable. The long supply lines to the sliders from the control cabinet are no longer required. At the same time, it is possible to use single modules STW161M in the same system (sliders on STW161M only DC 24 V).Function and propertiesModule for connecting up to 8 slidersOutputs potential-free changeover contacts for 24 or 230 VInputs for detecting the operating status of the machines (on/off), response threshold 0.5...9.9 A adjustable on the STW164IPControl via STW164IP (max. 4 x STW168M can be connected)Bus address 0...31 adjustableControl voltage DC 24 V (via 4-pole bus cable)LEDs for input and output statusesConnections via screw terminalsMounting Distribution board installation on top-hat rail EN60715Dimensions W x H x D: (without screw connections) 94 x 130 x 57 mmAccessories: ER6 mounting frame for panel mounting

Level-Relays NS 20 for conductive liquids can be used as monitors for 1 Level and for controlling a level between 2 electrodes.3 elektrodes for MIN/MAXcontrol2 elektrodes (E2 open) as level monitorSensitivity adjustable 5 kO
…250 k
OLED for state of relayFunction of relay reversible (picks up or releases at top electrode)Switching-delay adjustable 0,1…10 sHousing 35 mm wide, mounting height 55 mmUniversal supply-voltage AC/DC 24-240 VApplication level monitorProtection from running dry or overflow, monitoring of pumps for leaks, detection of leaks.Application Min/MaxControlling a level between minimum (elektrode E2) and maximum (E3). As long as E3 is dry, a magnetic valve is opened (or a pump is running) and liquid is influenting. As soon as maximum (E3) is reached, the NS 20 closes the valve. When the level falls below E2, the cycle starts new. In reverse also discharging of a container can be controlled.Overview of functions example filling with 2 electrodesThe detection of the level is made with a DC-free measuring of resistance between all electrodes The common electrode in E 1. A magnetic valve that is switched with relay-contacts 15-18 opens and lets liquid in until the upper electrode E3 is in contact with the liquid. Then the relay releases (15-18 open) and the valve closes. The relay remains released as long as electrode E 2 is in contact with the liquid. When the level falls below E2, the relay picks up (LED Relay on, 15-18 close) and the procedure starts new with opening the valve. Thus thelevel of the liquid is kept between E 1 and E 2.For monitoring one level only or in applications to protect from running dry or overflow or leak detection, only electrodes E1 and E3 are connected.

The basic function of the device is to detect whether a current is flowing in the supply line of one of several woodworking machines. If a current flow is detected, the device opens a valve on the machine's suction channel. At the same time, the extraction system is switched on. When a machine is switched off, the device closes the associated valve with a delay. If the last machine is switched off, the extraction system also stops after a delay.The current relay STW84V monitors up to 8 alternating current sets on current flow yes/no. The inputs can analyse signals of current transformers type STWA1(H) or of potential-free contacts.For controlling of great dedusting plants several relays can be combined.ApplicationsControlling of dedusting plants in the timber and plastic processing industry according to the technical rules for dangerous materials TRGS 553. The central suction is switched on, as soon as any machine is put into operation. According slide-valves in the suction ducts of the individual machines are opened. In addition, cleaning of a filter (vibration) and a cellular wheel/discharge can be controlled, an external cleaning (with pressurized air) can be started or exceeding of max. volume flow can be reported. The analog output 0...10 V can control a frequency-converter at the motor of the ventilator and thus optimize performance and save energy.Monitoring of 8 machines (STWA1(H) or contact)input for "open all slide-valves"8 relays (with change-over contacts) for slide-valves1 relay for control ventilator1 relay for filter-cleaning1 relay for control of cellular wheel/discharge or report exceeding max. volume-flowanalog output for control of frequency-converter and combination of more STW84Vterminals pluggableuniversal supply voltage AC/DC 24-270 V

The NS level monitor is an electronic device for monitoring levels of conductive liquids. The monitoring of the levels is effected vis electrodes, which are dipped or set free according to liquid level. All conductive liquids can be monitored, preferrably, however, water, also of different degree of hardness.To adapt the relay to the conductivity of the liquid and to the capacitance of (long) cables, the switching limit can be adjusted app. 5 kO ... 250 kO. Thus it also is possible to tell between the liquid and foam over the liquid.FunctionThe NS unit protects aggregates and plants against dry running, overflow, leakage damages and unnecessary loss of liquids. It controls and monitors levels of liquids in waste-water, pools, fish farms and whereever a certain level should be maintained or dosed.Depending on the application and the set program, it controls the level between 2 or 3 electrodes by means of opening or closing dose or drain of a container. The top and the lowest electrode protect from overflow or running dry.An electrolytic corrosion of the electrodes as well as detonating gas production is excluded due to a AC current measuring path.The universal supply voltage AC/DC 24-240 V allows to connect the relay to any common mains.The isolation between electronics (= electrodes) and supply voltage avoids malfunctions caused by potential spreading, also at DC-supplys.Monitoring of up to 4 levels4 relays with change-over contacts (co)Sensitivity adjustable 5...250 kOSwitching delay of relays adjustable 0...10 sSwitching-delay of alarms (on/off) adjustable 0...10 sBasic programs (selectable with DIP-switches) for various applicationsUniversal supply voltage AC/DC 24-240 VTerminals pluggableHousing for DIN-rail or wall-mount,mounting height 55 mm, 70 m m wideAccessory: Installation Frame ER6 for panel mount

The vibration control RSP1 is a compact multiple timing relay for capturing operation times ofsuction plants and for triggering vibrators.It provides optimal control of the vibration device by collecting of operating times of up to 3 suctions with variable programs for vibration procedures (spintime, interval- and permanent vibration) and programmable vibration periods. LED displays provide information about the operational state at any time.All times are permanently saved in an EEPROM. Thus the accumulated operation period of the suction operation saved when switching off the supply voltage, e.g. during the night or weekend.addition of the running time of 1, 2 or 3 suctions. introduction of vibration procedure after having reached the set total time (adjustable 4 to 120 min.) and after completion of the last suction operation.external vibration command by closing a contact, e.g. by filter monitoring work spintime adjustable 10 to 300 sec.interval vibrations 5, 15 or 20 times (disconnectable)interval vibration time (adjustable 1 - 30 sec.)interval break time (adjustable 1 - 30 sec.)continuous vibration (adjustable 10 - 300 sec.)no vibration during suction operation.if vibration procedure is interrupted (e.g. by switching on suction), the same will be recommenced at the next possible opportunity.Featuresinputs for up to 3 suctions.permanent saving of all times in the EEPROM.LED-display2 pushbuttons for programming.coding switch for adjustment of all timesRESET-button, resets operation period to zero or interrupts a running vibration procedure.VIBRATION-button, starts vibration procedure (only if suction is not active).

This level monitor for two electrodes preferrably serves to the limit control, e.g. as overflow or running dry protection of a conducting liquid. The device is integrated in a shock-resistant plastic housing of the type 94 and can also be used for outside- resp. waterproof mounting according to its protection system IP 54.The function of the relay is reversible (standard: releases, when E2 is reached) by changing of jumpers in the device. The sensitivity can be changed between 25…250 kOhm and the switching delay between 0,5…10 s.