
When the drive receives the emergency stop command:
1. The drive decelerates the motor to zero speed according to a user-defined ramp time.
Zero speed is a user-defined parameter setting.
2. ACS880-07LC/17LC/37LC drives: The drive activates the Safe torque off (STO) function.
3. The drive opens the main contactor/breaker, which disconnects the input power from
the drive.
4. The motor(s) coast(s) to a stop.
Operation principle
■
ACS880-07LC drives
-K62 .1
-K62 .1
-Qx
-Qx
-A51
-K62 .2
-K62 .2
DIIL
24 VDC
-A51
-K62 .2
DIIL
24 VDC
-A61
+2 4 V DC
-K62.2
-K62.2
-S62
-S62
-S62
-S62
-K61
-K61
-A41
-A412.X
DIO 1
DIO 2
X65
1
2
X65
1
2
DIO 1
DIO 2
X65
1
2
-K61
-K61
-T11.x
XSTO
XSTO
.OUT
4)
IN2
OUT
SGND
IN1
IN2
OUT
SGND
IN1
OUT1
SGND
OUT2
SNGD
OUT1
SGND
OUT2
SNGD
-X51 B
-X52 B
IN1
SGND
IN2
SGND
IN1
SGND
IN2
SGND
OUT1
SGND
OUT2
SGND
OUT1
SGND
OUT2
SGND
-X96 9
-X96 9
-K62.1
-K62.1
-K62.2
-K62.2
-K62.3
-K62.3
-K62.1
-K62.1
-S61
-Qx
-Qx
-A64 1
1)
BUS
3.1
3.2
-A64 1
1)
BUS
3.1
3.2
-A64x
R1
R2
BUS
3)
-A64x
R1
R2
BUS
3)
...
...
2)
-A642
R1
R2
BUS
3)
-A642
R1
R2
BUS
3)
230 VA C
-Qx
~
-T01
~
~
-T11
M
3~
M
3~
~
-T11
M
3~
-Qx
~
-T01
~
-T11
M
3~
-K62 .3
-K62 .3
5)
User-defined connection
- - -
Inverter control unit
A41
Supply control unit
A51
Emergency stop safety relay
A61
28 Description of Q952+Q984