Motor Protection MS 220 DA/ MCB 112 VLT® PTC ... - ziehl.de

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3 3 Introduction to MCB 112 VLT PTC Thermistor Card MCB 112 VLT ® PTC Thermistor Option 3.1.3 Connection Schematic Below, the electrical connections for the MCB 112 VLT PTC Thermistor Card are shown: Illustration 3.1: Connection schematic NB! The connections are not pre-wired from factory. 10 MG.33.V2.02 - VLT ® is a registered Danfoss trademark
MCB 112 VLT ® PTC Thermistor Option 3.1.4 Overview of Functions The MCB 112 VLT PTC Thermistor option is a thermistor monitoring unit with integrated safe isolation and sensor circuit monitoring. The output X44/12 is connected to the FC 302 Safe Stop input (Terminal 37). For more details regarding the use of the Safe Stop function, see section 4.1.1 Particular instructions for EN 61508 category SIL 1 and 2 At normal operation the output X44/12 is "High = 1". In case of motor over temperature it changes to "Low = 0" and activates Safe Stop. The output changes back to "High = 1" when the temperature has fallen below the critical temperature level. This means that the tripping device has removed its request for Safe Stop (however, another safety device may still require safe stop to be enabled). If safe stop is configured for Alarm (default), a manual reset is required before safe stop is deactivated. In case of short circuit of sensor or wiring, the output will also change to "Low = 0" and activate Safe Stop. The Safe Stop input on the FC 302 can be connected to more signals at the same time, meaning Safe Stop can be activated by other external signals. In that case output X44/10 can be used to identify if the alarm originates from the thermistor or another external signal. In the FC 302 the following parameters must be set: • Par 5-19: Safe Stop input must be configured to the relevant functionality including identification if other signals are connected. • A digital input must be set to "PTC Card 1" [80] for the output X44/10 to identify the origin of the Safe Stop signal. Illustration 3.2: Description of function 1) Short circuit 2) Warning: the trigger is not stored and is not zero-voltage safe. 3 Introduction to MCB 112 VLT PTC Thermistor Card MG.33.V2.02 - VLT ® is a registered Danfoss trademark 11 3
Page 1: Motor Protection MS 220 DA/ MCB 112
Page 4 and 5: 1 1 Application and short descripti
Page 6 and 7: 1 1 Application and short descripti
Page 8 and 9: 3 3 Assembly Motor Protection MS 22
Page 10 and 11: 4 4 Technical Data Motor Protection
Page 12 and 13: 4 4 Technical Data Motor Protection
Page 14 and 15: 5 5 Safety Instructions and Referen
Page 16 and 17: 6 6 Install the MS 220 DA Option in
Page 18 and 19: 7 7 Certificates Motor Protection M
Page 20: 7 7 Certificates Motor Protection M
Page 23: Operating Instructions MCB 112 PTC
Page 26 and 27: 1 1 How to Read these Operating Ins
Page 32 and 33: 2 2 Safety and Conformity MCB 112 V
Page 36 and 37: 4 4 How to Install MCB 112 VLT ® P
Page 38 and 39: 4 4 How to Install MCB 112 VLT ® P
Page 40 and 41: 5 5 Parameter Setup MCB 112 VLT ®
Page 42 and 43: 5 5 Parameter Setup MCB 112 VLT ®
Page 44 and 45: 6 6 Application Example MCB 112 VLT
Page 46: 7 7 Troubleshooting MCB 112 VLT ®

Motor Protection MS 220 DA/ MCB 112 VLT® PTC ... - ziehl.de

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