Safe Torque Off; Auxiliary Voltage Connection - ABB ACS480-04-09A8-1 Hardware Manual

84 Electrical installation – IEC
See the firmware manual for information on the related Motor thermal protection function.
1
T
1 1...3 × (Pt100 or Pt1000) or 1 × (Ni1000 or KTY83 or KTY84)
2 Analog input. Set the analog input type to V (volt) in parameter group 12 Standard AI. Define
the temperature sensor type, signal source, etc. with parameters 35.11...35.24. Set the
analog input type to V (volt) in parameter group 12 Standard AI.
3 Analog output. Select the Excitation mode for the analog output in parameter group
13 Standard AO.

Safe torque off

For the drive to start, both STO connections (OUT1-IN1 and OUT1-IN2) must be closed.
By default, the terminal block has jumpers to close the circuit. Remove the jumpers
before connecting external Safe torque off circuitry to the drive. See chapter
torque off function.

Auxiliary voltage connection

The drive has 24 V DC (±10%) auxiliary power supply terminals both on the base unit
and on the RIIO-01 module. You can use them:
• to supply auxiliary power from the drive to external control circuits or option modules
• to supply external auxiliary power to the drive to keep the control and cooling in
operation if there is a power outage.
See the technical data for the specifications for the auxiliary power supply terminals
(input/output).
To supply power to external control circuits or option modules:
1. Connect the load either to the auxiliary power output on the base unit, or on the
RIIO-01 module (+24V and DGND terminals).
2. Make sure that you do not exceed the load capacity of the output, or the sum load
capacity of both outputs.
T T
AIn
2
AGND
3
AOn
AGND
The Safe