2. Check Fuses. If fuses are blown, perform the following:
•
Check resistances across the phases at the Mains connector and note them in the
following table.
NOTE: Power wires must be removed from the motor for resistance test.
L1 - L2
Ohm
L2 - L3
Ohm
L1 - L3
Ohm
•
Resistances should be similar for all 3 readings.
•
Resistance readings should be greater than 100 kOhm.
•
Check all connections. Make sure connections are on the wire strand and not on
the wire insulation.
•
Replace Fuses.
•
Check mains voltage at each phase (phase to ground) at the Mains connector.
Confirms phase failure not present.
•
Check that the voltage is within the acceptable voltage range at the Mains
connector. Confirms line under-voltage is not present.
Figure 9.1 EC-fan Connections
Item
Description
Item
Description
1
Cover of controller housing
5
Alarm-relay connection
2
Cable glands and seal insert for two cables (if needed)
•
Motor size "D": 3 x M16 and 1 x seal insert with
two 5-mm holes.
•
Motor size "G": 3 x M20 and 1 x seal insert with
two 6-mm holes.
6
Control-system connection
3
Cable-entry points with plastic fastener
7
Slot for add-on module
4
Mains connection
Vertiv | Liebert® Mini-Mate™ Installer/User Guide
40
Содержание Liebert Mini-Mate MT036
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