
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
-K64 0
-K64 0
-A41
-T11.x
XSTO
XSTO
.OUT
5)
IN2
IN1
SGND
OUT
OUT1
SGND
OUT2
SGND
-X52 B
-X51 B
IN1
SGND
IN2
SGND
OUT1
SGND
OUT2
SGND
-A41
-T11.x
XSTO
XSTO
.OUT
5)
IN2
IN1
SGND
OUT
OUT1
SGND
OUT2
SGND
-X52 B
-X51 B
IN1
SGND
IN2
SGND
OUT1
SGND
OUT2
SGND
-A64 0
-A64 0
-A51
DIIL
24 VDC
-A51
DIIL
24 VDC
-A64 0
-A51
DIIL
24 VDC
-K64 0
-K64 0
-Q4
-Q4
230 VA C
-K64 0
-K64 0
-Qx
-Qx
4)
-A64 1
1)
BUS
3.1
3.2
-A64 1
1)
BUS
3.1
3.2
-A64 0
-S61
-S61
-S62
-S62
-A64x
R1
R2
BUS
3)
-A64x
R1
R2
BUS
3)
...
-S62
-S62
Qx
Qx
...
+2 4 V DC
2)
-A642
R1
R2
BUS
3)
-A642
R1
R2
BUS
3)
-Qx
~
-T01
-Q4
~
~
-T11
M
3~
M
3~
~
-T11
M
3~
-Qx
~
-T01
-Q4
~
-T11
M
3~
Q4
Q4
6)
User-defined connection
- - -
Inverter control unit
A41
Supply control unit
A51
Emergency stop safety relay
A640
Main monitoring relay for the push buttons
A641
Push button monitoring relays
A642 … A64x
Safety relay
K640
Main contactor/breaker (user-defined)
Qx
Charging contactor (F272)
Q4
Push button resistors
R1, R2
16 Description of Q951+Q984