Hitachi NEXT Series Instruction Manual page 39

■ During Operation (Note 1)
LCD Indication
Heading Trouble Description
Clogging of air intake fi lter
(AIR FILTER)
1st stage discharge air temperature
(DIS. TEMP . 1)
2nd stage discharge air temperature
(DIS. TEMP . 2)
2nd stage suction air
temperature
(2ND-S. TEMP)
ALARM
Oil temperature
(OIL TEMP)
[Fixed Speed type]
Oil pressure
(LOW O.P .)
[Built-in dryer type]
(DRYER)
Main motor temperature
(FIN-T) [Vtype]
Load/unload cycle time over
(L COUNT OVER)
■ Other
LCD Indication
Heading Trouble Description
Battery out
(BATTERY OUT)
Scheduling operation error
(SCHEDULE SET ERR)
Lead/lag operation error
PROBLEM
(MULTI-U SET ERR)
RS-485 port error
(COM.ERR STOP)
RS-485 port error
(COM.ERR ALM)
[Vtype]
Control device error (SYSTEM ERR)
PCB error
(PCB ERR)
[Vtype]
Controller retry (SYSTEM RETRY)
Interstage pressure sensor error
(PRESS.SNSR ERR 1)
Discharge pressure sensor error
(PRESS.SNSR ERR 2)
FAILURE
Oil pressure sensor error
(PRESS.SNSR ERR 4)
2nd stage inlet
temperature sensor error
(TEMP .SNSR ERR 2)
1st stage outlet
temperature sensor error
(TEMP .SNSR ERR 3)
2nd stage outlet
temperature sensor error
(TEMP .SNSR ERR 4)
Oil temperature sensor error
(TEMP .SNSR ERR 5)
Notes
(1) If 2-value is indicated, the value in the [
(2) Depends on the specification, reverse phase relay is used.
(3) The air compressor using reverse phase relay, such as for 460 V/60 Hz, indicates a phase-lacking connection as reversal phase.
(4) Communication error details:
Port 1 (65) =Main circuit communication (Vtype), Port 2 (66)=Fan inverter communication (Air-cooled type)
Port 3 (67)= LCD communication, Port 4 (68)= Multiple unit control communication, Port 5 (63)= External communication
(5) If the thermistor is disconnected, override operation is not available. Contact the local HITACHI distributor/master dealer or representative office.
What and How to Detect
Pressure differential of -0.72 psi
-4.98 kPa or more
About 428 [410]℉
〈220 [210]℃〉 or higher
For working pressure of
100psi 0.69MPa model : About
437 [419]℉ 225 [215]℃ or higher
For working pressure of
125psi 0.86MPa model : About
491 [473]℉ 255[245]℃ or higher
154 [149]℉
68 [65]℃ or higher
154 [149]℉
68 [65]℃ or higher
15 psi 0.10MPa or lower
When set the ALARM for the
dryer failure. See page 27
203℉ 〈95 〉 or more on the
℃
motor cooling fi n
1,000,000 cycles
Failure
What and How to Detect
Light
ALARM
Battery voltage low
Blinks
Start/stop time not set ALARM
yet Blinks
ALARM
Setting error
Blinks
Wiring connection or SHUTDOWN
setting error Blinks
Wiring connection or ALARM
setting error Blinks
Controller error
SHUTDOWN
Blinks
Fan inverter error
(ROM1)(RAM1) main
board memory error
SHUTDOWN
Blinks
(ROM2)(RAM2) LCD
board memory error
After reputation of retry SHUTDOWN
action Blinks
SHUTDOWN
PS1 disconnected
Blinks
SHUTDOWN
PS2 disconnected
Blinks
SHUTDOWN
PS4 disconnected
Blinks
SHUTDOWN
TH2 disconnected
Blinks
SHUTDOWN
TH3 disconnected
Blinks
SHUTDOWN
TH4 disconnected
Blinks
SHUTDOWN
TH5 disconnected
Blinks
] is for water-cooled type.
4. TROUBLESHOOTING [Protective Device]
Failure
Detector Shutdown What Actions to Take
Light
Pressure
ALARM
9.4
differential No
1
Blinks
sensor
ALARM
4.2
Thermistor No
Blinks
ALARM
4.2
Thermistor No
Blinks
ALARM
4.2
Thermistor No
Blinks
ALARM
4.2
Thermistor No
Blinks
ALARM Pressure
4.2
No
Blinks sensor
ALARM Pressure
No
Blinks sensor
ALARM
9.4
Thermistor No
14
Blinks
Replace suction throttle valve
ALARM Pressure
No consumable parts and Blow off
Blinks sensor
solenoid valves.
Detector Shutdown What Actions to Take
Disconnect the power and replace the
CPU No
battery with a new one.
3.3.5
CPU No
Check the wire and the operation
CPU No
setting on the instrument panel.
CPU No (Note 4)
CPU No (Note 4)
CPU Yes page 38 (a)
Disconnect the power and then
CPU Yes reconnect the power. If problem is
persists, change the PCB.
Check the power line, controller and air
CPU Yes
end.
CPU Yes
Disconnect the power and check the
CPU Yes
pressure sensor wire for tightness.
CPU Yes
CPU Yes
CPU Yes
Disconnect the power and check the
thermistor sensor wire for tightness.
CPU Yes
CPU Yes
How to History
Reset code
Automatically
21
reset.
Automatically
25
reset.
Automatically
26
reset.
Automatically
2B
reset.
Automatically
28
reset.
Automatically
2C
reset.
Automatically
- 2E
reset.
Automatically
81
reset.
Hold down the
REMOTE and press the
51
SELECT/WIDE button
for 7 seconds or more.
How to History
Reset code
Press RESET
64
9.4
. button.
11
Press RESET
62
button.
Press RESET
61
button.
Press RESET
65,
button. 66, 67
Press RESET
63X, 68X
button.
Press RESET 13
button.
57
43
Press RESET
47, 48
button.
41,
42 46
Press RESET
44
button.
Press RESET
33
button.
Press RESET
34
button.
Press RESET
39
button.
Press RESET
32
button.
Press RESET
35
button.
Press RESET
36
button.
Press RESET
37
button.
Error
code
E0.21
E0.25
E0.26
E0.2B
E0.28
E0.2C
E0.2E
E0.81
E0.51
Error
code
E0.64
E0.62
E0.61
E0.65,
66, 67
E0.63X,
68X
E0.13
E0.57
E0.43
47, 48
E0.41
42, 46
E0.44
E0.33
E0.34
E0.39
E0.32
E0.35
E0.36
E0.37
37