Acs800-17/37 Units; Wiring - ABB ACS800 Series Hardware Manual

24

ACS800-17/37 units

The category 0 emergency stop, i.e. immediate removal of power, operates as
follows.
The user presses the emergency stop
push-button.
Relay A21 de-energises.
A21 contacts 13–14 in the line contactor
control circuit open.
Relay K13 de-energises -> relay input DI2
on the RMIO board of the line-side
converter de-energises -> The line-side
converter stops modulating.
The ine-side converter control program
opens relay output RO3.
The line contactor or air circuit breaker
opens.
RMIO = motor control and I/O board (one control board for the line-side converter and another for the
A21

Wiring

One emergency stop push-button is installed on the cabinet door and wired to the
drive at the factory. Wire the additional emergency stop push-buttons to the
appropriate terminal block inside the drive cabinet. See the circuit diagrams
delivered with the drive.
Category 0 emergency stop for ACS800-07/17/37 (+Q951, n×R8i)
motor-side converter)
= safety relay
Contacts 33–34 open.
ACS800 application program receives "stop
by coasting" command (par. 21.09 START
Digital input DIIL on
the RMIO board of the
motor-side converter
de-energises.
INTRL FUNC set to OFF2 STOP).
The motor coasts to stop.