Shutdown/Alarm Indications On The Instrument Panel - Hitachi HISCREW V PLUS NEXT Series Instruction Manual

5. TROUBLESHOOTING [SHUTDOWN/ALARM Indications on the Instrument Panel]

5.2 SHUTDOWN/ALARM Indications on the Instrument Panel

When a problem occurs, the SHUTDOWN, ALARM or AUTO START light blinks and the digital monitor displays a
corresponding ALARM or SHUTDOWN (as 'A/S' below) code. If this is the case, refer to the following table to identify
the cause. If you cannot identify the cause, or for the problem with a
A/S Category of
Light: Action
Code Problem
Reversal phase
connection
SHUTDOWN:
E0.01
On (blinking)
Phase-lacking
connection
SHUTDOWN:
E0.11
On (blinking) Discharge air
temperature 2
(TH2)
ALARM:
E0.24
On (blinking)
Abnormally
E0.12
high discharge
SHUTDOWN:
air pressure
On (blinking)
E0.13
Controller abnormality
※※※
SHUTDOWN:
E0.17 Motor overload
On (blinking)
SHUTDOWN:
E0.53 Fan motor overload Yes
On (blinking)
High discharge
SHUTDOWN:
air temperature
E0.18
On (blinking)
1 (*)
High discharge
ALARM:
air temperature
E0.23
On (blinking)
1 (*)
Failed or discon-
SHUTDOWN:
E0.31 nected tempera-
On (blinking)
ture sensor 1
Failed or discon-
SHUTDOWN:
E0.32 nected tempera-
On (blinking)
ture sensor 2
Failed or discon-
SHUTDOWN:
E0.34 nected pressure
On (blinking)
sensor
24
HISCREW
Causes
Shutdown
Power connect-
Disconnect the power and change 2
Yes ed in a reversal
of the 3 power cord wires.
phase
Power connect- Disconnect the power.
Yes ed with a lack of Check the power supply. Tightly re-
T phase connect the power cord wires.
Oil separator Separator element abnormality.
element exit tem- Separator element, lubricant replace-
Yes
perature rise ment is required.
Same cause as
Same countermeasures as for shut-
shutdown blink-
down blinking
ing
Failure of oil sep- Check the oil separator element.
arator element Replace if required.
Yes
Failure of Disconnect the power and tightly re-
contactor 52 connect the 52 wires.
Controller
Yes
see p. 26
abnormality
Check the power supply for a voltage
Motor overcur-
drop and imbalance.
rent, power sup-
Correct it if required.
ply abnormality,
Check and correct the capacity con-
high discharge
Yes trol settings, if the discharge air pres-
air pressure, oil
sure is higher than the specification
s e p a r a t o r e l e -
pressure.
ment clogging
Check the motor for insulation resis-
(See E0.11)
tance etc.
Check the power supply for a voltage
Fan motor overcur-
drop and imbalance.
rent, dirty or clogged
Correct it if required.
oil cooler and af-
ter-cooler, dirty or
Clean the cooling fins of oil cooler
clogged controller'
and after cooler.
s and fan inverter's
Clean the cooling fi ns of the controller
cooling fi ns
and fan inverter.
Ventilate the room to reduce the ambi-
High ambient
ent temperature to 40℃.
temperature
Add oil. (Disconnect the power and
Low oil level make sure that the discharge air pres-
Yes
sure gauge reads 0 MPa in advance.)
Dirty or clogged oil cooler Clean the cooling fins.
Dirty or clogged Replace the oil filter element.
oil filter see p. 46.
Same as the
No Same as the E0.18 above
E0.18 above
Failure or discon- Disconnect the power and check the
Yes nection of therm- TH1. Replace it if necessary.
istor TH1 Tightly reconnect the TH1 wires.
Failure or discon- Disconnect the power and check the
Yes nection of therm- TH2. Replace it if necessary.
Tightly reconnect the TH2 wires.
istor TH2
Disconnect the power and check the
Failure or discon-
Yes nection of pres- PS. Replace it if necessary.
sure sensor PSB Tightly reconnect the PS wires.
mark in the table, contact a Hitachi distributor.
What Actions to Take
For R, S
see p. 48.
What and
Mark How to Reset
How to Detect
Detected for 3 sec- Disconnect
onds after con- and reconnect
necting the power the power.
phase
see
§7.6.3
Separator element
Press the
exit temperature
RESET button.
110℃ or higher
Separator element
Automatically
exit temperature
reset.
105℃ or higher
Detected during
operation
Press the
RESET button.
The controller
detects the failure.
Press the
Overcurrent
RESET button.
The fan inverter
Press the
detects the
RESET button.
failure.
Discharge air
Press the
temperature 1
RESET button.
over 110℃
Discharge air
Automatically
temperature 1
reset.
over 105℃
Operating
temperature
below ー30℃ Press the
RESET button.
Operating
temperature
below ー30℃
0 (zero) MPa
Press the
during opera-
RESET button.
tion.
A/S
History
01
11
24
12
17
53
18
23
31
32
34