ABB UMC100-FBP - Page 46

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Universal Motor Controller
UMC100-FBP
Technical Description
FieldBusPlug / Issue: 03.2012
Phase Sequence Protection
Enable this protection function to prevent connected equipment from a wrong rotation direction e.g when
driving a crusher or conveyor. If this protection function is active the motor wires must have a defined
order which is from left to right. Take care that contactors are mounted after the UMC to ensure the phase
sequence is not changed by switching the contactors (e.g. REV starter).
If a voltage module VI15x is present a wrong phase sequence is also detected if the motor
is not running. Otherwise a wrong phase sequence is detected during the startup of the
motor. It is possible to change the expected direction if wiring was done in a different way.
If no voltage module is used it is possible to change the expected direction if wiring was
done in a different way. Do not use this parameter when using a voltage module!
L1 L2 L3
181716151413121110
DIDIDIDIDIDI
24V
240
543210OutVV
Power
T1
8
DO
1
7
DO
0
6
DO
C
5
DO
C
9
DO
2
876
59
T2 Ca Cb
UMC100
READY
MOT.ON
FAULT
Relay
230VAC
1A
Inputs
24VDC
DC
 If the phase sequence supervision is active the
phases must be feed through the UMC in the shown order.
Relevant Parameters:
• Check phase sequence
• Phase reversal
• Motor current is > 20% of I
e