Safety control unit 471 M41 H31. for 4 to 32 sensors, with safety and control outputs. Use. Models. + PLe according to EN ISO

Transcription

1 Safety control unit for 4 to 32 sensors, with safety and control outputs 471 M41 H31 + PLe according to EN ISO Four safety outputs (two separate safety circuits each with two safety outputs) + Separate control outputs for further processing + Emergency stop function with short-circuit detection + Suitable for 2-hand control + Connection via codable, screwless terminals + Available as an option with double terminals + LED status display + Adjustable delay times for safety output 4 + Suitable for sensors with 2 NO system, input 4 also suitable for NO/NC system + Monitoring of the contactor externally Use The control unit is for evaluating signals from machine safety sensors. Due to the variable design, the inputs can be used for a variety of functions, such as 2-hand control or for connecting an emergency stop button. Models The 471 M41 H31 enables the connection of a sensor in 3- as well as 4-wire technique. The 4-wire technique also allows a cross short detection. At sensor input 4, a sensor with 2-contact makers as well as a contact maker/breaker system can be connected. Further parameters, such as the delay time, can be configured by a DIP switch. The connection terminals are available as an option and also as double terminals (1.5 mm²). Page 1 of 8

2 Mechanical assembly Installation dimensions Housing 120 x 100 x 45 mm (without terminals) 120 x 130 x 45 mm (with terminals) Installation On TH35 hat rails according to DIN EN Key mechanical data Technology Control unit for 4 to 32 external safety sensors* Material PA (polyamide) Weight Approx. 370 g (depending on version) Working temperature range 0 to +55 C Storage temperature range -25 to +85 C International protection IP30 DIN EN Colour Black * 4 sensors can be connected directly, up to 32 via additional interfaces s 2-hand control Cooling-off period 3 s 0,5 s Page 2 of 8

3 Approvals and safety key data Safety key data SIL CL 3 (EN IEC 62061) PLe (EN ISO ) Category 4 (EN / EN ISO ) PFH d 1.70e -8 1/h (EN IEC 62061) 20 year operating life Approvals ETL CAN/ESA C22.2#14, ANSI/UL 508 Key electrical data Operating voltage 24 V DC ± 15 % Power consumption Status display 850 ma 10 x LED Safety outputs Control outputs Switching voltage 30 V AC/DC 24 V DC Switching current 3 A AC/DC 100 ma Switching capacity 90 VA/W 2.4 VA/W Connection 24 V DC Input Logic Output 1 2 &/ Safety Shown in de-energised state. s are not actuated. K1 K2 2 5 external contactor K3 K Start-Push- Button/ external contactor & Control 1 +U B Control 2 Safety Control 3 +U B Control 4 Ready Power UB PLC PLC K4 K3 K2 K1 Page 3 of 8

4 Connection type Connection terminal Double terminal (optional) mm² mm² The plug-in, screwless terminals can be coded using coding pins so that if the device is replaced, the connectors cannot be confused during installation. Double terminals are also available as an option (see adjacent figure). The 471 M41 H31 consists of two independent units: Shown with double terminal Unit 1 input 1 For sensors with 2 NO system input 2 For sensors with 2 NC system Can also be used as 2-hand control Safety output 1 Controlled in parallel by sensor inputs Safety output 2 Controlled in parallel by sensor inputs External contactor For monitoring the external contactors Control output 1 Output sensor 1, switched state Control output 2 Output sensor 2, switched state Unit 2 input 3 For sensors with 2 NO system input 4 For sensors with 2 NC system For sensors with NO/ NC system For 3 or 4 wire technique For operating an emergency stop button Safety output 3 Controlled in parallel by sensor inputs Safety output 4 Controlled in parallel by sensor inputs Delay time can be adjusted (0-15 seconds), as opposed to safety output 3 External contactor For monitoring the external contactors For S4 emergency off: it is advisable to include a start button Control output 3 Output sensor 3, switched state Control output 4 Output sensor 4, switched state Remarks In the event of emergency off in 4 wire technique: cross short detection 2-hand control, simultaneous emergency stop and sensor(s) possible Separate output available for standby Page 4 of 8

5 You can set the options using the DIP switch. This is located under the top cover. You can read the input and output status with the following LEDs. LED 1 Operating voltage LED 6 4 LED 2 Standby LED 7 Safety output 1 LED 3 1 LED 8 Safety output 2 LED 4 2 LED 9 Safety output 3 LED 5 3 LED 10 Safety output 4 Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 Switch 7 Switch 8 8 second delay 4 second delay 2 second delay 1 second delay Safety sensor 4: contact breaker / maker 2-hand control Safety sensor 4: 3 or 4 wire No function Four safety sensors can be connected directly to the control unit. Using the following elobau interfaces, the monitoring can be extended by up to 32 safety sensors: 363 V Page 5 of 8

6 See the two examples below for connections with the switches for the operating model: 2-hand control, sensor and emergency stop with cross short detection: 1 st hand 2 nd hand Standby Safety output 1 Safety output 2 Output S1 External contactor Output S2 Safety output 3 Emergency stop External contactor Safety output 4 Output S3 Output S4 Switches for operating versions The turn-off delay of safety output 4 can be set via switch 1 to 4. See example here for 4 seconds. Start Cross short safety: emergency stop messages appear via two contact breakers which are impacted by various potentials. This allows cable short circuits to be detected. Circuit diagram shown in de-energised state. not actuated. Page 6 of 8

7 Connection with interface : Safety output 1 Safety output 2 Output S1 External contactor Output S2 Safety output 3 24 VDC power supply Safety output 4 Output S3 External contactor Output S4 1 Control output Elec. sensor connection Control output 2 Control output 3 4 Control output 4 Switch settings for options Shown in de-energised state. /s not actuated. Page 7 of 8

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