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6. Troubleshooting
State of Machine
Cause Check point
1. The fun does not run.
Content of confirmation
3) The transformer (T01) is defective.
4) The thyristor module (SCRM) is defective.
5) The control printing wiring board is
defective.
6) The fan motor and unit side control box
are defective.
2) Connected mistake
1) The power-supply voltage is abnormal. The value of power-supply voltage is
confirmed. (TB IN)
Fan power supply wiring is connected
with fan controller power supply taking
out part, and confirm operation.
The blinking of LED01 is confirmed.
The resistance is confirmed.
(Between the lines of primary side, and
lines of secondary side.)
The content of P15 is checked. (SCRM) The content of P15 is judgment. (SCRM)
Whether the voltage is input to fan motor is
confirmed.
Whether the fan motor operation is
confirmed.
The fan controller connection is confirmed.
The unit side connection is confirmed.
Is the power-supply voltage 342-457V?
Troubleshooting
Replace the transformer in case of abnormal
resistance.
When the voltage impression and fan motor does
not work, fan motor is defective.
When the voltage is not impressed to the fan, the
unit side control box is defective.
When there is no wrong above-mentioned,
it is assumed fan controller connection state,
if abnormality relapses, the control printing board
is defective and exchange.
Replace SCRM when abnormality is found.
At the time of turning on light. (always)
The CN01 connector is removed, and measures
resistance. When the resistance is 1 kilo-ohm or
less, repair the control printing board due to the
thermistor short-circuit breakdown.
In case of thermistor is correct, the control
printing board is defective and exchange.
At the time of turning off light.
The CN01 connector is removed, and measures
resistance. When the resistance is 25 kilo-ohm or
more, repair the control printing board due to the
thermistor open breakdown.
In case of thermistor is correct, the control
printing board is defective and exchange.
The wiring mistake is corrected.
The power supply wiring is confirmed,
and corrected.
TB OUT - fan motor
Resistance between the lines of primary side
(red and white) about 310 ohm.
Resistance between the lines of secondary
side (CN02 the connector is removed from
the printing wiring board.)
Between 1-3 pin about 0.9 ohm
CN02- thermistor
NF-SCRM-TB OUT
CNU, CNV, CNW-SCRM
(The connection is noted.)
TB IN-NF wiring
TB IN-T01-CN02.
After checking item 1)-4), when the power
supply is turned on, the blinking of LED01 is
confirmed.
Please intercept the power supply without fail, and secure safety when you execute detaching wiring, the connector,
and the measurement machine to the following work.