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114A-124A Communication error

Alarm conditions:

114A - no communication with supply fan C5_VM module

115A - no communication with exhaust fan C5_VM module

116A - no communication with el. Heater C5_PM module

117A - no communication with heat pump C5_PM module

118A - no communication with zone1 C5_PM module

119A - no communication with zone2 C5_PM module

120A - no communication with supply drive (Lenze modbus)

121A - no communication with exhaust drive (Lenze modbus)

122A - no communication with supply drive2 (Lenze modbus)

123A - no communication with exhaust drive2 (Lenze modbus)

124A - no communication with rotor drive

Possible causes:

  1. Wrong settings,
  2. Wrong/damaged wiring,
  3. Additional module failure,
  4. Main controller failure

Troubleshooting:

 

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