bonitron M3575R, Руководство для пользователей

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M3575R
22
2. Verify that appropriate voltage input is present for fan power. Input
voltage should be 115VAC for type “F”, 230VAC for type “FL”, or 24VDC
for type “FD” cooling fan.

If the resistor module
’s temperature exceeds 45

C and fan voltage is
present, return the unit for repair or replacement.
5.3.3.
O
VER
-T
EMP
C
ONTACT IS OPEN
If the Over-Temp Contact is OPEN and the chassis is HOT, allow the unit to
cool and recheck the contact. The contact should return to its normally closed
state. If the contact remains OPEN, return the unit for repair or replacement.
If the Over-Temp contact is OPEN and the chassis is COOL, return the unit
for repair or replacement.

If this occurs repeatedly, make certain that the unit is sized appropriately
and that the maximum current rating is not exceeded.
 Check the wiring to make sure connections are made to the braking
transistor, not across the DC bus.
5.3.4.
O
VER
-T
EMP
C
ONTACT DOES NOT OPEN ON
O
VER
-T
EMP
CONDITION
If the Over-Temp Contact remains CLOSED and the chassis temperature
exceeds 71

C, immediately disconnect the resistor module and allow the unit
to cool.
Allowing the
resistor module’s temperature to rise excessively could present
a fire hazard!
Once the chassis has COOLED, return the unit for repair or replacement.
5.4.
T
ECHNICAL
H
ELP
–
B
EFORE YOU CALL
If possible, please have the following information when calling for technical help:

Serial number of unit

Name of original equipment supplier

Brief description of the application

Drive and motor Hp or kW

The line to line voltage on all 3 phases

The DC Bus voltage

KVA rating of power source

Source configuration Wye/Delta and grounding