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
Summary of Contents for C10T
Page 2: ......
Page 8: ...F 6 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 14: ...S 4 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 16: ...IW 2 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 32: ...Operation 4 2 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 44: ...Troubleshooting A 4 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 47: ...Compressor Unit Instruction Manual ULVAC CRYOGENICS INCORPORATED B 3 B 4 ...
Page 48: ...Compressor Unit Instruction Manual ULVAC CRYOGENICS INCORPORATED B 5 B 6 ...
Page 50: ...Flexible Hose C 2 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 54: ...CS 2 ULVAC CRYOGENICS INCORPORATED This page intentionally left blank ...
Page 56: ...This page intentionally left blank R 2 ULVAC CRYOGENICS INCORPORATED ...