ABB ACQ580-07, Hardware Manual

Page: 106 / 324

Note: Extra-low voltage circuits (for example, 24 V DC) typically do not meet these
requirements.
As an alternative, you can connect the sensor with basic insulation to the
analog/digital input(s) of the drive, if you do not connect any other external control
circuits to the 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 double or reinforced insulation between the motor live parts
and the drive control unit. See
Connecting motor temperature sensor to the drive
via an option module (page 102) .
4. You can connect a sensor to a digital input of the drive via an external relay. The
sensor and the relay must form a double or reinforced insulation between the motor
live parts and the digital input of the drive.
See sections,
• AI1 and AI2 as Pt100, Pt1000, Ni1000, KTY83 and KTY84 sensor inputs
(X1) (page 147)
• Control unit (page 139)
• CMOD-02 multifunction extension module (external 24 V AC/DC and isolated PTC
interface) (page 307)
￭
Connecting motor temperature sensor to the drive via an option module
This table shows:
• option module types that you can use for the motor temperature sensor connection
• insulation or isolation level that each option module forms between its temperature
sensor connector and other connectors
• temperature sensor types that you can connect to each option module
• temperature sensor insulation requirement in order to form, together with the
insulation of the option module, a reinforced insulation between the motor live parts
and the drive control unit.
102 Guidelines for planning the electrical installation