Control Function Star-Delta Starter - ABB UMC100-FBP Technical Description

Universal Motor Controller
UMC100-FBP
Technical Description

Control Function Star-Delta Starter

Use this function in a feeder that requires to start/stop a motor in one direction of rotation including the
time- or current-controlled transition from star to delta.
• Relay output DO0 is used by the control function to control the star contactor
• Relay output DO1 is used by the control function to control the delta contactor
• Relay output DO2 is used by the control function to control the main contactor. It cannot be used as
fault output. Use the 24VDC output DO3 if a fault output is required.
• Optionally DI0 can be used for contactor checkback supervision
• Optionally DI4 can be used to start the motor and DI5 to stop it
• Optionally terminal named 24VDC Out (12) can be used as a fault output
The following diagram shows the UMC wired for star-delta operation. A signal lamp is connected to DO3
which serves as a fault output. The main contactor is connected to DO0 to DO2. Three auxiliary contacts
are used for contactor checkback monitoring. The motor can be started locally via DI4 and stopped via
DI5. The remaining digital inputs can be freely used.
UMC-
PAN
Fieldbus
Plug
Circuit diagram of the UMC for controlling a motor in star-delta mode. The checkback contacts k3/K5
and K1 are optional.
FieldBusPlug / Issue: 03.2012
The voltage dip function is not supported in this control function.
Adjust parameter YD changeover mode
Adjust parameter YD starting time
GND
(24VDC)
24VDC
DO3
12
I
Lim
10 11
0V
24VDC
Contactor
Supply
(e.g. 230VAC)
K5
K3
DOC DO0 DO1 DO2
5 7 8
UMC100
13 14 15 16 17 18
DI0 DI1 DI2 DI3 DI4 DI5
k3 k5
k1
Fwd Stop
- 79 -
L1, L2, L3
K1
9
3
K3=star
K5=delta
3
K1=main
k1
k5
M
UMC100-FBP
k3