Hitachi HISCREW 2000 Series - Page 24

22
Override operation disables the following functions:
– To display the digital monitor (except for EE)
– To turn on (either flashing or not flashing) the ALARM
or SHUTDOWN light
– To select a screen by pressing the SELECT button
– To externally output the control signals through the
dry contacts
5. TROUBLESHOOTING [Override Operation]
IMPORTANT
5.2.1 Enabling Override Operation
q Press the RESET button.
w Disconnect the power.
e Detach the door (for the 22 kW models) or the
front enclosure panel (for the 37 kW models),
and remove the starter cover.
r Reset the DIP switches (on the printed circuit
board located in the starter/control box) as fol-
lows:
SW1 No. 8: ON (setting of override operation)
SW2 No. 3 & 4: ON & OFF
(setting of U-type capacity control)
t Return the door or the front enclosure panel to
their original places.
y Reconnect the power.
The digital monitor displays EE indicating that
the override operation is successfully enabled.
5.2.2 When Override Operation is not
Allowed
The override operation is not allowed to the fol-
lowing error codes:
E-31: The thermistor TH1 is disconnected or
loosely connected
E-32: The thermistor TH2 is disconnected or
loosely connected
E-41: ROM error (failure of PCB)
E-42: RAM error (failure of PCB)
E-43: E
2
ROM error (failure of PCB)
If this is the case, see pages 23 through 24 to take
corrective measures.
For the error code E-33 (failure of pressure sensor):
After enabling an override operation, hold down the
SELECT button and connect the power, and press the
START button. Note that this clears the shutdown
history.
IMPORTANT
③⑤
①
②⑥
Power
Supply
16
CN16
51
CN17
41
CN8
21
CN2
19
CN1
17
CN15
17
Y3 Y1Y1
CPU
Y52C
Y2D
Y52
CN13
13
CN3
15
CN5
17
CN4
17
CN6
15
CN14
41
Y42
Y6
C38
C4D
C39
ICO
GND
CN11 CN12
14
CN18
13
CN19
13
CN22
14
CN21
15 12
CN10
1
18
2
CN9
SW1
14
SW2
CN7
HC30CPU−
SW1
ON
OFF
DIPSwitch
④
12345678 （SettingofU-type
CapacityControlSystem）
Settingof
OverrideOperation
SW2
134
ON
OFF
DIPSwitch
PrintedCircuitBoard
DRYER
ドライヤー
エコモード
SELECT
警報
SHUTDOWNALARM
RESET
表示切替
10h×
リセット
故障
C：温度 TEMP
RUNNINGCONTROL 運転管理
ECOMODE
Ｅ：故障コード ERRORCODE
⑥
Indicatingof
OverrideOperation
Enabled