EN - 28
6.5 Phase controller fault
The phase controller protects the entire machine. It must be wired to terminals 7-8 on terminal block J5 on the motherboard.
The machine is shut off when a fault occurs on the phase controller (contact opens.
Fault message:
●
If a fault occurs:
- Fault stored in fault memory.
- Relay in On position.
- Phase control fault relay on relay board in On position.
- General fault LED on console lit steadily.
●
Resetting:
- A 2-minute time delay starts when this input opens.
- When the time delay elapses, the fault is acknowledged if the contact is closed. The input is not read during this time delay.
Message in fault memory :
6.6 Pump 6 fault
If P24 = No
(unit without hydraulic module)
- Pump faults are not managed.
If P24 = Yes and P25 = 1
(unit with hydraulic module and one pump)
●
Operation :
- Detected by opening of contact.
●
If a fault occurs:
- Compressors turned off.
- Machine and circuit fault output on.
- Pump fault relay on optional board in On position.
- General fault LED on console lit steadily.
Display:
●
Resetting:
- Once the input closes, acknowledge the fault by pressing
RESET
on the console.
If P24 = Yes and P25 = 2
(unit with hydraulic module and two pumps)
●
Operation :
- Detected by opening of contact (one per pump)
●
If a fault occurs on a pump:
- Compressors turned off.
- Restart with second pump after 10 seconds (unless pump already off).
- Machine and circuit fault output on.
- Pump fault relay on optional board in On position.
- General fault led on console flashes.
Display:
●
Resetting:
- Once the input closes, acknowledge the fault by pressing
RESET
on the console.
●
If a fault occurs on both pumps:
- Compressors turned off.
- Machine and circuit fault output on.
- Pump fault relay on optional board in On position.
- General fault and circuit fault LEDs on console lit steady.
Display:
6.7 Emergency stop (split system unit and dry cooler.
●
Operation:
- This input is used for split-system units and dry coolers.
●
If a fault occurs:
- Compressors turned off.
- Fans turned off.
- Machine and circuit fault output on.
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