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890SD Standalone Drive
5-20
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
8
9
10
11
A
B
C
D
1
2
3
4
6
7
E
Feed the power supply and motor cables into the drive through the large aperture in the metal gland plate
and connect to the power terminals. Tighten all terminals to the correct tightening torque, refer to Appendix
E: "Technical Specifications" - 890CD/890SD Wire Sizes.
Motor Thermistor Connections
This input is provided to detect over-temperature in motors fitted with an internal
thermistor. There is no polarity to the thermistor connections.
IMPORTANT
This input provides “Basic” insulation only to the SELV control circuits and
assumes the motor has “Basic” insulation to the windings/mains circuits.
The thermistor type supported is PTC `Type A’ as defined in IEC 34-11 Part 2. The drive uses the
following resistance thresholds:
Rising temperature trip resistance:
1650 to 4000
Ω
Falling temperature trip reset resistance:
750 to 1650
Ω
If the motor is not fitted with an internal thermistor, you should disable the thermistor trip function
either by setting INVERT THERMIST to be TRUE, or by linking the thermistor terminals.
MMI Menu Map
1
SETUP
2
TRIPS
3
I/O TRIPS
INVERT THERMIST