aldes EasyVEC C4 Notice D'installation page 27

Troubleshooting
Check visually for switch on 1
HMI** switched off (and connected)
Check power supply wiring visually on product and on electrical
box
HMI** off and connected
Long-life LED on board is off (not blinking)**
Following change after-sales service card
HMI** switched on
Long-life LED lit on board**
Verify the motor connection visually
Verify the power supply at the multimeter at the motor connector.
Verify config. value and setpoint (0-10 V)
Verify choke connection visually
HMI** switched on, none of the previous hypotheses have
produced a result
Verify electrical network
HMI** message
Verify choice of regulation
1. Verify setpoint value (typo for example) against the stipulated
value
2. Verify connection and obstruction of pressure tubes
1. Verify temperature at box fan outlet (fire risk) = /!\
2. Verify thermoswitch connection
1. Press a button to exit stand-by mode
2. Verify HMI connection
"COM MODBUS" message on HMI
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**Available depending on version. If the problem persists, contact our after-sales service
Solution
• Refer to the maintenance guide HMI part
• Activate the switch (position 1)
• Wire as per notice
• Reconnect capacitor
• Rewire the board if problem persists, change it
• Follow HMI recommendation for filling in Product ID
• Connect motor and if problem persists, change motor + choke
• Connect the choke then if problem persists, change motor + choke
assembly
• Change the board
• Make network compliant
• Commission, adjust the setpoint (via adjustment button** or HMI**)
• Make the choice of regulation complaint
1. Adjust the setpoint via HMI** or adjustment button**
2. Reconnect the pressure tubes and unblock them.
If problem persists: change the hoses and then change the board.
1. Notify site security
2. Reconnect thermoswitch and reinitialise as per maintenance guide or
change the part and reinitialise as per maintenance guide
• Reconnect HMI,
If problem persists, change HMI
1. Move switch to OFF
2. Unplug the communication equipment from the MODBUS port to access
the HMI settings
• Check the thermoswitch (normally closed).
• Check for correct wiring of the thermoswitch to the controller terminal
block, between MI3 and DCM
•Check the size of the circuit breaker.
• Check the system voltage and the controller wiring (inside and outside
the box fan)
• Identify and correct the fault that caused the controller fault.
• Change the controller
• Please see below §Controller fault codes »
• Check the controller output voltage.
• The order to start is given by the controller terminal block (the RUN
button is disabled).
• Verify the MI1/DCM bridging on the controller terminal block.
• Verify the position of switches above the controller terminal block: NPN
(and AVI depending on version)
• Verify the wiring between electronic board and controller (depending
on version)
• Verify the wiring between the controller and the motor terminal box.
• Identify and correct the fault that caused the motor to fail
• Change the motor
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