Operation Principle; Acs880-07Clc Drives - ABB Q951 User Manual

16 Description of option +Q951+Q984
When the drive receives the emergency stop command:
1. ACS880-07CLC/07LC/17LC/37LC drives: The drive activates the Safe torque off (STO)
function.
2. The drive opens the main contactor/breaker, which disconnects the input power from
the drive.
3. The motor(s) coast(s) to a stop.

Operation principle

ACS880-07CLC drives

￭
+2 4 V DC
-A64 1 -A64 1
1) 1)
2)
...
-A642 -A642 -A64x -A64x
BUS BUS
...
3) 3)
R2 R2
R1 R1
- - - User-defined connection
A41 Inverter control unit
A51 Supply control unit
A640 Emergency stop safety relay
A641 Main monitoring relay for the push buttons
A642 ... A64x Push button monitoring relays
K640 Safety relay
Qx Main contactor/breaker (user-defined)
Q4 Charging contactor (option +F272)
R1, R2 Push button resistors
-S61 -S61
-A64 0
3.1 3.1
3.2 3.2
BUS BUS
BUS BUS
-S62 -S62
3) 3)
R2 R2
R1 R1
-K64 0 -K64 0
-A41 -A41
XSTO XSTO
OUT OUT
SGND SGND
IN1 IN1
-S62 -S62
IN2 IN2
-K64 0 -K64 0
Qx Qx
Q4 Q4
4) 230 VA C
-K64 0 -K64 0
-Qx -Qx -Q4 -Q4
-A51 -A51 -A51
DIIL DIIL DIIL
-A64 0 -A64 0 -A64 0
24 VDC 24 VDC 24 VDC
-T11.x -T11.x
XSTO XSTO
-X51 B -X51 B
-X52 B -X52 B
.OUT .OUT
SGND SGND SGND SGND SGND SGND
OUT2 OUT2 OUT2 OUT2
IN2 IN2
SGND SGND SGND SGND
SGND SGND
OUT1 OUT1 IN1 IN1 OUT1 OUT1
6)
-Qx -Qx -Q4 -Q4
-T01 -T01
~ ~
-T11 -T11 -T11
~ ~ ~ ~
M M M M
3~ 3~ 3~ 3~
5) 5)