ABB MPS-C 2000 Manuale di istruzioni - Pagina 7
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2.8.3 The target resets automatically when the unit is re-energized. Reset occurs in 2 seconds.
2.8.4 The red LED blinks once per second to indicate that the MPS-C 2000 unit is powered up and functioning
normally. (self monitor light).
2.8.5 The red self monitor light blinks five times per second to indicate long-time pickup and continues to do so until
reset or the breaker trips.
2.8.6 When the unit is powered up and the settings table has timed out, the LCD screen will display metering
information provided that the unit has enough line current to power up or is externally powered.
3. TEST FUNCTIONS
3.1 The unit continuously monitors the condition of the microprocessor and is reported by a flashing LED on the front
panel. Upon failure, the LED will glow steadily.
3.2 The unit is compatible with the 607 test set.
4. VOLTAGE INTERFACE MODULE (VIM)
4.1 The VIM performs the following functions:
a. Provides the phase voltage for remote display.
b. Houses the electronics for performing the power, power factor and frequency processing based
on current data from the MPS-C 2000 box.
c. Performs calculations to determine voltage unbalance and undervoltage faults.
4.2 If a VIM device is installed the MPS-C 2000 unit must be connected to a NIM communications unit.
4.3 If a VIM is installed in the unit, a cable connects the unit to the potential transformer located on the rear of the
MPS-C 2000 mounting plate and plugs directly into the VIM board.
4.4 Settings
4.4.1 Voltage unbalance
4.4.1.1 Pickup - 5% to 50% in increments of 1% and DISABLED. Set via the front panel or the NIM communication
unit. Default is DISABLED. Connection to a NIM is necessary for this function to be enabled.
4.4.1.2 Trip time - 0.1 to 25.0 seconds in increments of 1 second. Set via the front panel or the NIM communications
unit. Default is 25.0 seconds.
4.4.2 Undervoltage trip
4.4.2.1 Pickup - 1 to 600 volts in increments of 1 and DISABLED. Set via the front panel or the NIM communications
unit. Default is DISABLED. Connection to a NIM is necessary for this function to be enabled.
4.4.2.2 Trip time - 0.1 to 25.0 seconds in increments of 1 second. Set via the front panel or the NIM communications
unit. Default is 25.0 seconds.
Courtesy of NationalSwitchgear.com
ABB