ABB ACS800-37-0060-3, Hardware Manual

Page: 36 / 228

The ACS800-37
36
Door switches
Main switch-disconnector (Q1 in frame size R6 to R8i)
The switch-disconnector handle switches the main and auxiliary voltages to the drive
on and off.
Air circuit breaker (Q1 in frame size 2×R8i and up)
The air circuit breaker controls the main supply voltage (phases L1, L2 and L3). For
more information on using the breaker, refer to its manual.
WARNING! Opening the air circuit breaker will not switch off the auxiliary voltages of
the drive.
Auxiliary power switch (Q100 in frame size 2×R8i and up)
The auxiliary power switch controls all auxiliary voltages in the cabinet including the
DC link charging circuit. The auxiliary voltage switch must be closed before the drive
can be started.
Earthing switch (Q9 in frame size 2×R8i and up)
When closed, the optional earthing switch connects the supply phases L1, L2 and L3
to PE. The switch is interlocked so that it cannot be closed when the drive is
powered. Likewise, the drive will not start when the earthing switch is closed.
Other door switches
These switches are only installed if the drive is equipped with the optional
emergency stop function.
G
Emergency stop button Start switch
0 = Cooling fans are disabled. (Other
auxiliary voltages are on.)
1 = Starts the cooling fans.
S = Closes the main contactor
and starts the supply unit.
E
M
ER ENC
Y
O
S T P
0
1
RESET
Reset button
Resets an emergency stop, after
which the supply unit can be started
using the start switch.
(Drive faults are reset via the drive
control panel or serial
communication)
S