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890CS & 890CD Common Bus Units
4-24
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
5
6
7
E
Motor Thermistor Connections
This input (terminal X16) 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.
Gland Plate Details
Frame E
The gland plate holes accept the following gland sizes:
22.8mm to accept metric M20, PG16 and American ½” NPT cable gland sizes
28.6mm to accept metric M25, PG21 and American ¾” NPT cable gland sizes
47.3mm to accept metric M40, PG36 and American 1¼” NPT cable gland sizes
54.3mm to accept metric M50, PG42 and American 1½" NPT cable gland sizes
Frame F
The gland plate holes accept the following gland sizes:
22.8mm to accept metric M20, PG16 and American ½” NPT cable gland sizes
28.6mm to accept M25, PG21 and American ¾” NPT cable gland sizes
MMI Menu Map
1
SETUP
2
TRIPS
3
I/O TRIPS
INVERT THERMIST