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Fault F0
135
Maintenance
Maintenance Overview
Preventive maintenance is primarily a matter of
routine inspection and cleaning. The most
important maintenance factors are the following:
Is their sufficient air flow to cool the drive?
Has vibration loosened any connections?
The HPV 600 needs to have sufficient air flow
for long, reliable operation. Accumulated dust
and dirt accumulation can reduce air flow and
cause the heat sinks to overheat. The heat sinks
can be kept clean by brushing, while using a
vacuum cleaner.
Periodically, check air filters on enclosure doors,
clean if dirty and replace as necessary.
Periodically, clean the cooling fans to prevent
dirt buildup. At the same time, check that the
impellers are free and not binding in the
housing.
Periodically, check all mounting and electrical
connections. Any loose hardware should be
tightened.
WARNING
Hazardous voltages may exist in the drive
circuits even with drive circuit breaker in off
position. NEVER attempt preventive
maintenance unless incoming power and control
power is disconnected and locked out. Also,
ensure the DC Bus charge light is out.
Drive Servicing
Remember when servicing the HPV 600:
Hazardous voltages may exist in the drive
circuits even with drive circuit breaker in off
position.
IMPORTANT
Use extreme caution: Do not touch any circuit
board, the drive, or motor electrical connections
without making sure that the unit is properly
grounded and that no high voltage is present.
NEVER attempt maintenance unless:
the incoming three phase power and control
power is disconnected and locked out.
also, ensure the DC Bus charge light is out.
even with the light out, we recommend that you
use a voltmeter between (+3) and (-) to verify
that no voltage is present.
If after 5 minutes the DC bus charge light
remains ON or voltage remains between
terminals (+3) and (-):
First, check that the incoming three phase power
is disconnected
Once the incoming three phase power is
disconnected, it will be necessary to discharge
the DC bus with a “bleeder” resistor.
Discharging DC bus with “Bleeder” Resistor
IMPORTANT
Use extreme caution when connecting the
bleeding resistor.
Using a 250ohm/100 watt “bleeder” resistor,
connect the resistor leads to the (+3) and (-)
terminals located on the brake resistor terminal.
The resistor leads should be connected for 20
seconds or until the DC bus charge light
extinguishes.
Once the DC bus charge light is out, verify with
a voltmeter that no voltage exists between the
(+3) and (-) terminals.
It will be necessary to have the drive repaired or
replaced.
Reforming Bus Capacitors
The following is a procedure for reforming the
electrolytic bus capacitors.
If the drive has been stored for more than 9-
months, it is recommended that the bus
capacitors be reformed.
After 18 months of storage it is
mandatory
that
the bus capacitors are reformed.
The bus capacitors in the HPV 600 can be
reformed
without removing them from the drive.
To reform the capacitors, voltage must be
gradually increased as follows:
Increase the AC input voltage from zero at a
very slow rate, approximately 7 VAC per minute,
reaching full rated voltage after about an hour.
This will reform the capacitors.
Содержание HPV 600
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