复卷机安全缓冲器

Mayser Polymer Electric P.O. Box 30 48 89020 Ulm Germany Tel. +49 731 2061-0 Fax +49 731 2061-22211 07 07 Safety Control Unit SG-EFS 1X4 ZK2/1 L20ms with automatic or manual reset Operating Instructions Safety Control Unit with EEC-type-examination certificate EN 954 Category 3 with forceguided contacts for increased safety requirements; for Pressure Sensitive Mats, Safety Edges and Safety Bumpers with 1.2 kΩ monitoring resistor. These operating instructions apply to the following control units: SG-EFS 104 ZK2/1 L20ms 24 V=/~ SG-EFS 134 ZK2/1 L20ms 230 V~ Control The single-fault-safe electronics module has two channels (redundant). Each channel triggers a force guided relay. The relays self-test by contact return after each switching cycle. The electronics monitor the electrical resi- stance of the connected sensors which have a specific closed-circuit current. When the sensors are not activated, both output relays are energized and both yellow LEDs light. If a sensor is activated, or a break occurs in the sup- ply to the control unit, relays K1 and K2 deenergize and the LEDs go out. Erroneous tripping signals, caused by falling material, are prevented by 20 ms by means of a time element. Enclosure W × H × D (mm) 45 × 75 × 105 Protection class IP 20 Plug-in connectors each 8-channel Cable clamps max. 2.5 mm2 Weight = model approx. 175 g ~ model approx. 270 g Notes on protection class: The units may only be used in locations with a minimum protection class of IP 54 (eg. cabinet). Parts supplied - Control Unit Enclosure with electronics module and plug-in connectors. - Operating Instructions channel 1 sensor channel 2 Reset Auto- Reset fault indicator relay SG-EFS 1X4 ZK2/1 L20ms Mayser Polymer Electric P.O. Box 30 48 89020 Ulm Germany Tel. +49 731 2061-0 Fax +49 731 2061-222 11 07 07 Safety Control Unit SG-EFS 1X4 ZK2/1 8k2 Technical Data Connecting voltage US SG-EFS 104 ZK2/1 L20ms AC 24 V DC 24 V SG-EFS 134 ZK2/1 L20ms AC 230 V Voltage tolerance -15% to +10% -15% to +20% Nominal frequency 50 Hz Frequency tolerance 48 - 62 Hz Power consumption < 5 VA for AC < 5 W for DC 28 V Sensor voltage DC 15 V Control Unit Outputs Switching channel K1 and K2 11/14, 21/24 Switching voltage max. AC 240 V max. DC 24 V Switching current 4 A 1 A Fault indicator relay K3 31/32 Switching voltage max. AC 42 V max. DC 42 V Switching current max.100 mA max. 100 mA Permissible ambient temp. -20 °C to +50 °C IMPORTANT NOTES! Please read! To ensure correct and safe operation of the unit, it must be properly trans- ported and stored, properly installed and commissioned, and operated in accordance with its purpose. Only persons familiar with the instal- lation, commissioning and operation, and with the corresponding qualificati- ons to prove their skills, may work on the units. They must observe the con- tents of these instructions, the notes given on the type plate of the unit and the safety requirements relevant to the installation and operation of electrical systems. This unit is constructed and tested to prEN 1760 and DIN V 31006 and left our factory in perfect condition with regard to safety. In order to maintain this state, you must observe the safety regulations marked "WARNING!" in these operating instructions. Failure to observe the sa- fety regulations can lead to death, injury to personnel, or damage to the unit and other systems and equipment. Should the information given in these operating instructions be inadequate in any way, please contact your local technical centre, subsidiary or represen- tative. When using the device outside the European Union, you must observe the relevant regulations valid for the country of use. Note: When switching inductive loads the user must be fitted out with spark ab- sorbers. 2 connection variants: - SG-EFS 1X4 ZK2/1 L20ms with automatic reset Bridge 7, 8 must be in place The unit becomes active again as soon as the sensor is no longer activated. The fault indicator relay K3 works in synchrony with the sa fety relays K1, K2 and is available as a voltage free, normally closed contact. - SG-EFS 1X4 ZK2/1 L20ms with manual reset Bridge 7, 8 must be removed After deactivation of the unit by the sensor it must be re-activated by means of an external reset button. The fault indicator relay K3 works in synchrony with the safety relays K1, K2 and is available as a voltage free, normally closed contact. WARNING! Not for safety circuit: - The fault indicator contact across 31, 32 is solely for information purposes and must not be connected into the safety circuit. Do not cross link control units: - Clamps 5, 6 as well as 7, 8 and Y1, Y2 are not voltage free and thus may not be cross linked with further control units. Mayser Polymer Electric P.O. Box 30 48 89020 Ulm Germany Tel. +49 731 2061-0 Fax +49 731 2061-22211 07 07 contact duplication for automatic reset channel2channel1 Installation and Operation Installation The enclosure of the control unit can be mounted in any position: - on a 35 mm EN 50022 rail Wiring is carried out in the cable clamps of the plug-in connection: Sensor Y1, Y2 Supply voltage A1, A2 Switching channel K1 11,1 4 Switching channel K2 21, 24 Fault indicator relay 31, 32 Reset button 5, 6 for automatice reset only: Bridge 7, 8 Commissioning After connecting up sensors, switching contacts and power, carry out a function test in the following order: Sensor not activated - both yellow LEDs light - outpit relays K1, K2 are energized - fault indicator relay K3 is energized Activate sensor - both yellow LEDs go out - output relays K1, K2 deenergize - fault indicator relay K3 deenergizes WARNING! Do not release terminals or remove the plug-in connection with power on. Maintenance The control unit is maintenance-free. Check the safety installation monthly by activating the sensors. Important notes: - Supply voltage must be in accordance with the con- necting voltage US indicated on the type plate. - Permissible temperature range If installing into a cabinet, maintain sufficient distance from heat sources (min. 2 cm). - Wiring Wire direct to the control circuit or continue two-channel mode to the next circuit. Fuse the relay contacts externally (risk of welding). contacts continued in two-channel mode channel 1 channel 2 0.1A Signalgeber A ut o- R es et R es et Netzspannung Us siehe Leistungsschild EIN Kanal 1 Kanal 2 contact duplication for manual reset channel 1 channel 2 R E S E T Mayser Polymer Electric P.O. Box 30 48 89020 Ulm Germany Tel. +49 731 2061-0 Fax +49 731 2061-222 11 07 07 Check sensor Check combination of sensors Resistance measurement: Disconnect power to the unit. Unplug plug-in connection and measure (Y1,Y2) with an ohmmeter: not activated c. 1.2 kΩ activated < 150 Ω Check individual sensors Resistance measurement: Measure each individual sensor with an ohmmeter: /BK not activated infinite Ω activated < 150 Ω /W not activated c. 1.2 kΩ activated < 150 Ω If the values measured deviate consi- derably from the set values, the sensors have to be checked individually (see below). Subject to technical modifications. Check also cables and cable connec- tions. Damaged or faulty sensors must be repaired or replaced immediately by a specialist. Only a functioning system can ensure maximum safety! yellow LEDs do not light, relay K1 and K2 are deenergized: > supply voltage off or incorrect  Check supply voltage, compare with type plate. > Faulty sensor or supply lines (break in connection or short circuit)  Connect 1.2 kΩ resistor instead of sensor. If the yellow LEDs do not light, the control unit is faulty.  Replace control unit. one yellow LED lights: > fault in control unit  Control unit faulty.  Replace control unit. /BK /W sensor control unit Troubleshooting and remedies Prerequisite: SG-EFS connected to power supply, sensor not activated. Problem not solved? – The Mayser Support Team can help: tel. +49 731 2061-0