Daikin WGZ030DW Operating And Maintenance Manual Download

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OMM 1130

longer than 6 hours. Once the module has locked out the compressor, a power cycle or Modbus
reset command will be required to clear the lockout.

Code 3 – Short Cycling: The module will flash the red

Alert

LED three times indicating the

compressor is locked out due to short cycling. A Code 3

Alert

will open the M2-M1 contacts.

Code 3 will be enabled when the "Short Cycling" dipswitch (#10) is "on" or in the "up" position and
the compressor has exceeded the number of short cycles configured by the user in a 24 hour
period. Once the module has locked out the compressor, a power cycle or Modbus reset
command will be required to clear the lockout.

Code 4 – Scroll High Temperature: The module will flash the red Alert LED four times indicating
the scroll NTC circuit is less than 2.4K Ohms. A Code 4 Alert will open the M2-M1 contacts. The
Alert will reset after 30 minutes and the M2-M1 contacts will close if the resistance of the scroll
NTC circuit is higher than 5.1K Ohms. The module will lockout the compressor if the number of
Code 4 Alerts exceeds the user configurable number of Code 4 events within a 24 hour period.
Once the module has locked out the compressor, a power cycle or Modbus reset command will
be required to clear the lockout.

Code 5 – Reserved for Future Use

Code 6 – Missing Phase: The module will flash the red Alert LED six times indicating a missing
phase in one of the three leads to the compressor. A Code 6 Alert will open the M2-M1 contacts.
The Alert will reset after 5 minutes and the M2-M1 contacts will close if the missing phase
condition is not present. The module will lockout the compressor after 10 consecutive Code 6
Alerts. Once the module has locked out the compressor, a power cycle or Modbus reset
command will be required to clear the lockout.

Code 7 – Reverse Phase: The module will fl ash the red Alert LED seven times indicating a
reverse phase in two of the three leads to the compressor. A Code 7 Alert will open the M2-M1
contacts. The module will lockout the compressor after one Code 7 Alert. A power cycle or
Modbus reset command will be required to clear the lockout.

Code 8 – Reserved For Future Use

Code 9 – Module Low Voltage

The module will fl ash the red Alert LED nine times indicating low module voltage (see Table 2)
on the T2-T1 terminals for more than 5 seconds. A Code 9 Alert will open the M2-M1 contacts.
The Alert will reset after 5 minutes and the M2-M1 contacts will close if the T2-T1 voltage is
above the reset value

Resetting Alert Codes

Resetting

Alert

codes can be accomplished in two different ways. First,

Alert

codes can be reset

manually by cycling power to the module (disconnect T2 or T1 for 5 seconds). The second way to reset

Alert

codes is to send a Modbus reset command from the master controller. If the fault that initiated the

Alert

code is absent after one of the above resets is performed, the

Alert

code will be cleared and

CoreSense will allow normal operation. If the fault is still present after the reset is performed the
fault code will continue to be displayed via the green or red flashing LED.