Malfunction Indicator - Zehnder RPM Mode D'emploi

15.. Malfunction indicator

problem/mailfunction
RPMe, VPMe, KPMe
not regulating position correctly
Motor does not rotate
RPM, VPM, KPM
Not regulating position correctly
Fan speed does not correspond with
the switch setting
Motor does not rotate
Check/action
Check dipswitch setting.
Check current:
Low: 230V for L3
Medium: 230V for L3 and L2
High: 230V for L3 (+L2) and L1
Check dipswitch setting.
Check current low/medium and high.
Check on the PCB the power supply to the motor, 230V for L and
N.
No voltage means the PCB is defective
Check on the PCB the control voltage for the motor. Test
voltage between GND and 0-10V (0V is off and 10V is 100%).
Replace the PCB if no voltage is detected.
Check current:
Low: 230V for L3
Medium: 230V for L3 and L2
High: 230V for L3 (+L2) and L1
Check current low/medium and high. If this is correct, replace the
condenser module.
Check current low/medium and high
If the fan hums and does not reach operating speed, then the mo-
tor condenser may be defective; replace the condenser module
if necessary
Apply 230V directly to L3 and U1 if the fan rotates, replace the
condenser module. If the fan does not rotate, replace the motor
EN - 11