Mitsubishi Electric PUHY-P168, Service Handbook

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[
VII
Control ]
(2) Compressor INV board
[PUHY/PURY]
Note1 Except for SW2-1, all are set to OFF at factory shipment. Unless otherwise specified, set the switch to OFF
where indicated by "-," which may be set to a certain setting for a reason.
Note2 Leave SW1-1 to OFF during normal operation. If it is set to ON, errors cannot be detected and the unit may be
damaged.
(3) FAN INV board
[PUHY/PURY]
Note: Except for SW2-1, all are set to OFF at factory shipment. Unless otherwise specified, set the switch to OFF where
indicated by "-," which may be set to a certain setting for a reason.
Switch Function
Function according to switch
setting
Switch setting timing
OFF ON OFF ON
SW1 1 Enabling/disabling the following error
detection functions;
ACCT or DCCT sensor circuit error
(530X Detail No. 115, 116)
ACCT or DCCT sensor failure
(530X Detail No.117,118)
IPM open/Disconnected CNCT2
(530X Detail No. 119)
Detection of erroneous wiring
(530X Detail No.120) Error detec-
tion enabled Error detec-
tion disabled Anytime after power on
2 - - - - -
3 - - - - -
4 - - - - -
SW2 1 Inverter address 0 1 Always leave it to ON
2 - - - - -
3 - - - - -
4 - - - - -
Switch Function
Function according to switch
setting
Switch setting timing
OFF ON OFF ON
SW2 1 Inverter address 0 5 Always leave it to ON
2 - - - - -
3 - - - - -
4 - - - - -