SanRex CALPOTE UF-1 Series, Инструкция по эксплуатации

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Maintenance and inspection
It is noted that dust, moisture, overheating, vibration, and others may degrade performance or
cause any failure of the unit.
Securely turn off the power for main and control circuits when conducting maintenance and inspec-
tion. Keep in mind that any voltage is applied to the circuit even after the start/stop switch is set to
stop.
When a warning circuit functions, an abnormality indication lamps lights or flickers on the front side
window of the unit. So turn off the power after checking the content of warning.
When the “OCR” or “F” is lit, any abnormal current is applied onto the unit. Eliminate possible
causes to restart operation in such case.
When the “TMP” is lit, a cooling effect is worsened due to any failure of a fan and other causes.
Replace such fan with a new one to enhance the cooling effect, and then re-operate the unit.
When the “THY” flickers, a Thyristor is faulty, or the abnormality detection lines are disconnected or
short-circuited. Replace such Thyristor with a new one or check the lines, and then re-operate the
unit.
Troubleshooting
If occurrence of a trouble is suspected, read this INSTRUCTION MANUAL carefully to inspect the fol-
lowing items. If the trouble is not solved yet, be sure to turn off the power supply of the unit, and contact
our distributors nearest you or our business offices.
Situation Possible causes Remedy
Output
does not
come out. Is not the control power 160V or less? Adjust the power supply voltage to
200/220V.
Are not lines between ST and PH opened? Short-circuit between ST and PH.
Are not lines between GT and PH opened? Short-circuit between GT and PH.
When the setting of grade is not used, are not
lines between VF2 and VE3 opened? Short-circuit between VF2 and VE3.
Is the setting of grade 0? Increase the grade.
Is a phase of the power supply for main circuit
aligned with the same for control circuit?
(There may be the case that the LOD flickers.) Align both phases.
Is wiring improper? Check wiring.
Is any of the abnormality indication lamps lit or
flickering? Eliminate possible causes, and then
turn on/off the control power.
Is switch S1 set improperly? Check its setting procedure again.
Output is
abnormal. Are polarities of PT and CT aligned in the
case of constant power control? Align such polarities.
Is switch S1 set improperly? Check its setting procedure again.
Is conversion board set improperly? Check its setting procedure again.