Ulvac C10T, Инструкция по эксплуатации

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Compressor Unit Instruction Manual
ULVAC CRYOGENICS INCORPORATED A-1
Appendix A
TROUBLESHOOTING
◆
Disconnect the compressor from its power source before performing any
troubleshooting procedures.
◆
The compressor pump is hot after operating. Wait for the unit to cool
down before working on the inside of the compressor.
Table A-1 Troubleshooting Procedures
No Problems Possible Cause Corrective Action
Ⅰ Compressor
stops during
continuous
operation.
1) Thermal protective switches
(TS1 and TS2) are ON.
2) Over current protective switches
(MPA, MPB) or circuit protectors
(CP1, CP2) are active.
Check the cooling water condition
(temperature, flow rate).
・ Check the power supply voltage.
・ Contact our Service Engineering
Division or the nearest CS center.
Ⅱ
Compressor
does not start.
1) No power coming from the
source.
Check wiring and ensure that the
power supply connecter is
connected properly.
2) Circuit protectors (CP1, CP2) are
OFF.
Turn the circuit protectors ON.
3) Reversed phase protective relay
(PRR) is active. (STOP light is lit
up)
Change two phases of power source
(Refer to section 4.1).
Ⅲ Compressor
stops after
several minutes’
operation.
1) Thermal protective switches (TS1
and TS2) are ON.
Check that cooling water flows
properly. Also check the cooling
water temperature and flow rate
(Refer to Figure 3-2).
WARNING