Motor Wiring - ABB UMC100-FBP Technical Description

Universal Motor Controller
UMC100-FBP
Technical Description

Motor Wiring

Have a look at the wiring of the motor to set the correct nominal current I
Example:
For inner delta wiring the parameter Current Factor can be changed to 1.73 to display the actual currents
on the Control Panel and in the control system. The delta 3 circuitry is normally used for larger motors to
reduce the current transformer size.
Star
Power line: 690 V
UMC
U1 V1
W2 U2
Example for motor:
Motor rating plate
400 V / 690 V
4.9 A / 2.8 A
I = 2.8 A / I
P
Parameter
Set Current = 2.80
Terminal box
U1 V1
W2
U2
I = Actual current / phase
P
I = Set current
SC
Related Parameters:
• Nominal current Ie1
• Nominal current Ie2 (for two speed starters only)
FieldBusPlug / Issue: 03.2012
Power line: 400 V
I
P
UMC
I =
SC
I
P
W1 U1
V2 W2
Example for motor:
Motor rating plate
= 2.8 A I = 4.9 A / I
SC P
Set current = 4.90
W1
V2
* With voltage module you must set I
to 1.7 and the current factor to 4.9 A.
Delta
I
P
I =
SC
I
P
V1 W1
U2 V2
400 V / 690 V
4.9 A / 2.8 A
= 4.9 A
SC
Parameter
Terminal box
U1 V1 W1
W2
U2 V2
- 23 -
for perfect motor protection.
e
3 wiring
Power line: 400 V
I
P
UMC
I
I
U1 V1 W1
W2 U2 V2
Example for motor:
Motor rating plate
400 V / 690 V
4.9 A / 2.8 A
I = 4.9 A / I = 2.8 A
P SC
Parameter
Set current = 2.80*
Terminal box
U1 V1 W1
W2
U2 V2
e
UMC100-FBP
=
SC
* 0.577
P