Danfoss FC 102 Design Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

HFT 0PFD (for yearly functional test) 4.10 *10-3SFF 78%λs + λDD 8494 FITλDU 934 FITOrdering number 130B11373.1.11 Sensor Input Option MCB 114The sensor input option card MCB 114 can be used in thefollowing cases:• Sensor input for temperature transmitters PT100and PT1000 for monitoring bearing temperatures• As general extension of analog inputs with oneadditional input for multi-zone control or differ-ential pressure measurements• Support extended PID controllers with I/Os for setpoint, transmitter/sensor inputsTypical motors, designed with temperature sensors forprotecting bearings from being overloaded, are fitted with3 PT100/1000 temperature sensors. One in front, one inthe back-end bearing, and one in the motor windings. Thesensor input Option MCB 114 supports 2- or 3-wire sensorswith individual temperature limits for under/overtemperature. An auto detection of sensor type, PT100 orPT1000 takes place at power up.The option can generate an alarm if the measuredtemperature is either below low limit or above high limitspecified by the user. The individual measured temperatureon each sensor input can be read out in the display or byreadout parameters. If an alarm occurs, the relays or digitaloutputs can be programmed to be active high by selecting[21] Thermal Warning in parameter group 5-**.A fault condition has a common warning/alarm numberassociated with it, which is Alarm/Warning 20, Temp. inputerror. Any present output can be programmed to be activein case the warning or alarm appears.3.1.11.1 Ordering Code Numbers and PartsDeliveredStandard version code no: 130B1172.Coated version code no: 130B1272.3.1.11.2 Electrical and Mechanical SpecificationsAnalog InputNumber of analog inputs 1Format 0-20 mA or 4-20 mAWires 2Input impedance <200 ΩSample rate 1 kHz3rd order filter 100 Hz at 3 dBThe option is able to supply the analog sensor with 24VDC (terminal 1).Temperature Sensor InputNumber of analog inputs supporting PT100/1000 3Signal type PT100/1000Connection PT 100 2 or 3 wire/PT1000 2 or 3 wireFrequency PT100 and PT1000 input 1Hz for each channelResolution 10 bitTemperature range-50 - 204 °C-58 - 399 °FGalvanic IsolationThe sensors to be connected are expected to be galvanically isolated from the mains voltagelevel IEC 61800-5-1 and UL508CCablingMaximum signal cable length 500 mSelection Design Guide60 Danfoss A/S © Rev. 06/2014 All rights reserved. MG11BC0233