ABB ACS880-607 Series, Hardware Manual

Page: 19 / 88

Brake chopper module connectors
￭ Connectors X50…X53
Connector X50
Not in use. 9
115/230 V AC (50/60 Hz) input for optional heating element
(+C183).
Not in use in brake chopper modules.
N 8
L 7
Not in use. 6
115/230 V AC 50 Hz input for internal power supply (BDPS)
(115 V AC 60 Hz with G304). N 5
L 4
400 V AC (50/60 Hz) supply for optional DOL (direct-online)
cooling fan (C188).
Note:
In modules wC188, the DOL wiring is present but not
in use.
W 3
V 2
U 1
Connectors X51, X52, X53
Not in use. STO
OUT X51
STO OUT
X51
FE GND 24
V
GND 24
V
STO connectors of the mod-
ule. Must be connected to
24 V DC for the module to
start. STO IN X52
STO IN
X52
FE GN
D 24
V
GN
D 24
V
24 V DC for BCU and for
STO IN to enable the mod-
ule operation. 24V OUT X53
24V OUT
X53
FE 24
V
GN
D 24
V
GN
D
Note:
The Safe torque off (STO) safety function is only
implemented in inverter units. Therefore, the STO
function cannot be used in supply, rectifier, DC/DC
converter and brake units. In these units, de-ener-
gizing any connection of STO IN (X52) connector
stops the unit. Note that this stop is not safety re-
lated and must not be used for safety function
purposes.
Operation principle and hardware description 19