ABB ACS850-04 series, Hardware Manual

Page: 108 / 164

Installation
108
Safe torque off (XSTO)
For the drive to start, both connections (OUT1 to IN1, and OUT2 to IN2) must be
closed. By default, the terminal block has jumpers to close the circuit. Remove the
jumpers before connecting an external Safe torque off circuitry to the drive. See
page
64 .
Control cable connection procedure of units with internal control unit
(P905)
1. Fasten the clamp plate to the control unit with two screws from front, see
Fastening the control cable clamp plate on page 97 .
2. Fasten the optional modules if not fastened already.
3. Lead the control cables inside the drive cabinet.
4. Route the control cables along the control cable duct from bottom or top to the
control unit.
5. Ground the outer control cable shields 360 degrees at the cabinet lead-through
plate (recommendation).
6. Ground the control cables at the clamp plate as described in bullet 2 under
Connecting the control cables to the terminals of the control unit on page 104 .
7. Connect the conductors to the appropriate detachable terminals of the control unit
(see page 104) . Use shrink tubing or insulating tape to contain any stray strands.
Tighten the screws to secure the connection.
Note: Keep any signal wire pairs twisted as close to the terminals as possible.
Twisting the wire with its return wire reduces disturbances caused by inductive
coupling.
Connecting a PC
Connect the PC to the drive control unit as follows:.
1
3
4
ACS850-04
X7
COM