ABB ACS880 Series, Electrical Planning Instructions

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￭ Separate control cable ducts
Put 24 V DC and 230 V AC (120 V AC) control cables in separate ducts, unless the 24 V DC
cable is insulated for 230 V AC (120 V AC) or insulated with an insulation sleeving for
230 V AC (120 V AC).
24 V DC
230 V AC
(120 V AC)
230 V AC
(120 V AC)
24 V DC
Implementing motor temperature sensor connection
You have these implementation alternatives:
1. If there is double or reinforced insulation between the sensor and the live parts of the
motor, you can connect the sensor directly to the analog/digital input(s) of the drive.
See the control cable connection instructions.
2. If there is basic insulation between the sensor and the live parts of the motor, you can
connect the sensor to the analog/digital input(s) of the drive if all other circuits connected
to the digital and analog inputs (typically extra-low voltage circuits) are protected against
contact and insulated with basic insulation from other low-voltage circuits. The insulation
must be rated for the same voltage level as the drive main circuit. Note that extra-low
voltage circuits (such as 24 V DC) typically do not meet these requirements.
Alternative: You can connect the sensor with a basic insulation to the analog/digital
input(s) of the drive if you do not connect any other external control circuits to drive
digital and analog inputs.
3. You can connect the sensor to the drive via an option module. The sensor and the
module must form a reinforced insulation between the motor live parts and the drive
control unit. See
Connecting motor temperature sensor to the drive via an option
modules (page 27)
4. You can connect a sensor to a digital input of the drive via an external relay. The
insulation of the relay must be rated for the main circuit voltage of the motor. See
Connection of motor temperature sensor to the drive via a relay (page 28) .
￭ Connecting motor temperature sensor to the drive via an option
modules
This table shows:
• the option module types that you can use for the motor temperature sensor connection
• the insulation or isolation level that each option module forms between its temperature
sensor connector and other connectors
• the temperature sensor types that you can connect to each option module
Electrical planning guidelines 27