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CHAPTER 1: INTR ODUCTION
Thermistor
Sensor types: ..........................................................................PTC (RHOT = 3.6 kΩ, RRESET = 1.5 kΩ)
Time delay................................................................................500ms
Elements ...................................................................................fault (trip) and warning (alarm) - warning not valid for ATEX
Connection ..............................................................................1, 3 or 6 thermistors in series
Standard
.................................................................................IEC 34-11-12
Max cable length to detect short ..................................AWG 14 = 266m
1.2.2 Metering and monitoring specifications
Event Recorder
Capacity....................................................................................250 events
Data storage...........................................................................non-volatile memory
Phase Metering
Accuracy...................................................................................±5% with external CT
Elements ...................................................................................single phase, average
1.2.3 Input specification
Digital Inputs
Fixed pickup ............................................................................16.8Vdc (24Vdc version)
Fixed drop-off .........................................................................10Vdc (24Vdc version)
CA UTION:
The usage of voltage between the drop-off and pickup range is not recommended.
...................................................................40 msec
Recognition time
Current draw at rated voltage ........................................5ma on 24Vdc (24Vdc version)
Type ............................................................................................opto-isolated inputs
Maximum input voltage.....................................................28.8Vdc (24Vdc version)
1.10
AWG 16 = 160m AWG 20 = 70m
77Vac (110/240Vac version)
30Vac (110/240Vac version)
7ma on 240Vac (120/240Vac version)
275Vac (120/240Vac version)
EP OS MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
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