CRE Technology UNIGEN Plus User Manual

Unigen Plus & Industrial Unigen - User technical documentation
A51Z090004
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28
Generator L1 1.5 / 16
29
Generator L2 1.5 / 16
30
Generator L3 1.5 / 16
31
Generator Neutral 1.5 / 16
AC voltage input measurement generator.
Line to line voltage from 100 to 500 VAC.
Frequency: 50 or 60 Hz.
Fuses: 100 mA. / 600 VAC.
Note: If the neutral input is not connected, UNIGEN will
generate an internal virtual neutral point.
32
START ON LOAD REQUEST 1 / 17
33
START ON LOAD REQUEST 1.5 / 16
Dry contact: Normally open, 250 VAC, 5A.
‘START ON LOAD REQUEST’ relay is closed when the
load request exceeds 80% of the nominal power ->
slave generator is to start.
‘START ON LOAD REQUEST’ relay is opened when
the load request is above 20% of the nominal -> Slave
generator is to stop.
34
SYNC OK 1.5 / 16
35
SYNC OK 1.5 / 16
Dry contact: normally open, 250 VAC, 5A.
‘SYNC OK’ relay is closed when the coupling of the
generators is safe (‘sw5’ and ‘sw6’ configuration) :
- Voltage difference within limits.
- Phase difference within limits.
- Frequency difference within limits.
- Phase sequence
- or Deadbus
36
SET UNAVAILABLE 1 / 17
Not isolated digital input, Dry contact to 0v
(10 kOhms pull-up).
Connect the signal "fault" from the generator.
37
SLAVE INPUT 1 / 17
Not isolated digital input, Dry contact to 0v
(10 kOhms pull-up).
Select this UNIGEN in slave.
38
MAINS PARALLELED (for Unigen
Plus)
1 / 17
Not isolated digital input, Dry contact to 0v
(10 kOhms pull-up).
This input gives the position of mains breaker to the
UNIGEN. Use a direct Aux contact of the breaker.
39
COMMAND MODE (for Unigen Plus) 1 / 17
Not isolated digital input, Dry contact to 0v
(10 kOhms pull-up).
This input forces kW and kVAR load sharing in
COMMAND MODE.
40
KW SET CW +5V (for Unigen Plus) 0.25 / 23 *
41
KW SET cursor (for Unigen Plus) 0.25 / 23 *
42
KW SET CCW 0V (for Unigen Plus) 0.25 / 23 *
Analog input 5 kOhms potentiometer or 0-5 VDC
between 42 (-) and 41 (+). Use a shielded wire.
43
Not connected
44
Parallel lines High(+)(for Unigen
Plus)
2.5 / 13*
45
Parallel lines low(-)(for Unigen Plus) 2.5 / 13*
0 to 3V. Isolated input.
Load sharing and power set level (kW only) (‘sw3’ to
OFF configuration).
Compatibility with other UNIGEN and with analogue
load sharing line isolated or not isolated (ex: GCR).
Compatibility with Wheaston bridge.
46
CANBUS+ 2.5 / 13*
47
CANBUS- 2.5 / 13*
Isolated input. Load sharing with canbus (‘sw3’ to ON
configuration for Unigen Plus) (‘sw1’ configuration).
48
SHIELD 0.25 / 23 * Terminal to connect the shield of the CAN signals.
49
MODBUS A (for Unigen Plus) 2.5 / 13 *
50
MODBUS B (for Unigen Plus) 2.5 / 13 *
19200 bps. Used to communicate with SCADA.
MODBUS RTU slave. Read (04 and 03) functions.
(‘sw8’ configuration).
51
Bus bar L1 1.5 / 16
52
Bus bar L2 1.5 / 16
53
Bus bar L3 1.5 / 16
54
Bus bar Neutral 1.5 / 16
AC voltage input measurement bus bar.
Line to line voltage from 100 to 500 VAC.
Frequency: 50 or 60 Hz.
Fuses: 100 mA. / 600 VAC.
Note: If the neutral input is not connected, UNIGEN will
generate an internal virtual neutral point.
Note: * Shielded cable is recommended for these connections. Use 2 or 3 Conductor Foil Shield with drain Wire.
Note: Cable sizes are for guidance only. Cable size should be increased for long cable runs, to overcome possible
voltage drop and to increase noise immunity.
Only for Unigen Plus.

CRE Technology UNIGEN Plus Specifications

General

Brand	CRE Technology
Model	UNIGEN Plus
Category	Control Unit
Language	English