[5-1 Dipswitch Functions and Factory Settings ]
- 79 -
HWE12050 GB
5 Control
(2) INV board
Functions are switched with the following connector.
CN6 short-circuit connector is mated with the mating connector.
Leave the short-circuit connector on the mating connector during normal operation to enable error detection and protect the
equipment from damage.
(3) Fan board (Control box side, Fan box side)
Only the addresses are preset before shipment (All other switches are set to OFF.) Unless otherwise specified, leave the
switch to OFF where indicated by "-," which may be set to OFF for a reason.
Set SW1-5 on the control-box-side fan board to ON (address = 5). Set SW1-6 on the fan-box-side fan board to ON (address
= 6).
Leave SW1-1 to OFF during normal operation. Setting this switch to ON will disable the error detection function and may result
in equipment damage.
Connector Function
Function according to connec-
tor
Setting timing
Enabled Disabled
CN6 short-
circuit con-
nector
Enabling/disabling the following error
detection functions;
ACCT sensor failure
(5301 Detail No. 115)
ACCT sensor circuit failure
(5301 Detail No.117)
IPM open/ACCT erroneous wiring
(5301 Detail No. 119)
Detection of ACCT erroneous wiring
(5301 Detail No.120)
Error detec-
tion enabled
Error detec-
tion disable
(No load op-
eration is pos-
sible.)
Anytime after power on
Switch Function
Function according to switch
setting
Switch setting timing
OFF ON
SW1 1 Enabling/Disabling no-load opera-
tion
No-load operation will continue for
approximately 30 seconds, and
then the unit will come to an abnor-
mal stop. For details, refer to the
following page(s). [8-9-8 Checking
the Fan Inverter for Damage at No
Load](page 238)
No-load oper-
ation disabled
No-load oper-
ation enabled
Anytime after power on
2 - - - -
3 - - - -
4 - - - -
5 Address setting (Control box side) 0 5 Before power on
6 Address setting (Fan box side) 0 6 Before power on
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