ABB UMC100.3 Manual page 84

U M C 1 0 0 . 3 U N I V E R S A L M O T O R C O N T R O L L E R T E C H N I C A L D E S C R I P T I O N
84
GND
(24VDC)
24VDC
DO3
UMC-
PAN
Comm.
interface
Supply
0V/24V
0V
—
Circuit diagram of the UMC for controlling dahlander motors. The checkback contacts k81/k91 are optional
Command
RUN FORWARD
received
telegram)
RUN FAST FORWARD
DO0 (contactor K1)
UMC
outputs
DO1 (contactor
Motor current /
Check-back
RUN FORWARD
Monitoring signals
(telegram)
RUN FAST FORWARD
UMC internal
—
Timing Diagram for Pole-Changing Starter
Contactor
Supply
(e.g. 230VAC)
K91a
DOC
I
UMC100
Lim
DI0 DI1 DI2 DI3 DI4 DI5
k81 k91
24VDC
Run K1
K2a, K2b)
aux. contact
OFF
Pause time
K91b
K81
DO0 DO1 DO2
k81
Speed1 Stop
Speed2
U1
V1
w1
Run K2
~ 20 ms
L1, L2, L3
K81=speed one
K91=speed two
3
k91a
k91b
U2
M
V2
w2