Hitachi DSP-160V6WN User Manual

33
4. TROUBLESHOOTING
4.1 Protective Devices
The DSP is provided with the protective devices as listed below. Shutdown troubles and alarming troubles detected by
these protective devices are indicated on the liquid crystal display (LCD). Referring to the LCD indications, investigate the
cause of a shutdown or alarming trouble.
■ When Connecting the power
LCD Indication
What and
How to Detect
SHUTDOWN
MODE Light
Detector Shutdown What Actions to Take
How to
Reset
History
Code
Heading Trouble Description
PROBREM
Reversal phase connection Detected for 3
seconds after
connecting the power
Blinks
in red
CPU Yes Change 2 of 3 wires of the power cord.
Press RESET
button.
01
Phase-lacking connection CPU Yes
Reconnect the power cord tightly, check the
power supply, and take a corrective remedy.
Press RESET
button.
02
Short period Power Interruption Black out for 1 to 5 seconds
−
CPU No
See page for Power Interruption detection
−
03
Instantaneous Power Interruption Black out for less than 1 seconds CPU No See page for Power Interruption detection 04
■ During Operation
LCD Indication
What and
How to Detect
SHUTDOWN
MODE Light
Detector Shutdown What Actions to Take
How to
Reset
History
Code
Heading Trouble Description
SHUTDOWN
Discharge air tem-
perature (1)
The temperature detected
at 1st stage rises above
the below settings.
Blinks
in red
Thermistor Yes See page 35
Press RESET
button.
55
Warning seeting＋5℃(＋41℉)
Discharge air tem-
perature (2)
The temperature detected
at 1st stage rises above
the below settings.
Blinks
in red
Thermistor Yes See page 35
Press RESET
button.
56
Warning seeting＋5℃(＋41℉)
Interstage pressure 0.27MPa (39psi) or higher
Blinks
in red
Pressure sensor Yes See page 35
Press RESET
button.
52
2nd-stage suction air
temperature
70℃ (158℉) or higher
(after the intercooler)
Blinks
in red
Thermistor Yes See page 35
Press RESET
button.
5B
Oil temperature 70℃ (158℉) or higher
Blinks
in red
Thermistor Yes See page 35
Press RESET
button.
58
Oil pressure
[Fixed speed]
0.08MPa (12psi) or lower
Blinks
in red
Pressure sensor Yes See page 35
Press RESET
button.
5C
Oil pressure
(OIL-LOW PRESS)
Oil pressure descends
under below settings.
Blinks
in red
Pressure sensor Yes See page 35
Press RESET
button.
5C
Freg. 45Hz
or higher
0.08MPa
(12psi)
Freg. less
than 45Hz
0.04MPa
(6psi)
Overloading
(main motor)
Detected during oper-
ation
Blinks
in red
Thermal relay Yes See page 35
Press RESET
button.
17
Overloading
(ancillary motor)
Detected during oper-
ation
Blinks
in red
Thermal relay Yes See page 35
Press RESET
button.
53
Answer error of 52
Detected during
running.
Blinks
in red
CPU
Yes See page 35
Press RESET
button.
51
Answer error of 42
Detected after shifting
to △ running.
Blinks
in red
CPU
Yes See page 35
Press RESET
button.
16
FAILURE
INVSTOP
Inverter tripping or main
motor overloading with
automatic retrials.
Failure signal from
inverter
Blinks
in red
CPU
Failure
stop after
repetition
of retrials.
See page 35
Press RESET
button.
44
If an alarming trouble or a shutdown trouble has happened, investigate the cause and take a corrective
remedy before restarting.
If you have anything unclear or any question, please contact the local Hitachi distributor.
CAUTION

Hitachi DSP-160V6WN Specifications

General

Brand	Hitachi
Model	DSP-160V6WN
Category	Air Compressor
Language	English