CIAT Magister 2 Series, Установка, Эксплуатация, Пусконаладка, Обслуживание

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
If P25 = 1:
Only one pump supplied.
If the pump fault is detected, the unit is shut off and the following message appears:
- Compressor and electric stages shut off
- Saved in fault memory
- Machine fault output on
- Pump 1 fault relay on optional board in On position
- General fault LED on console lit steady

If P25 = 2 then P2 = air-to-water or reversible air-to-water: two pumps supplied
A) If a fault occurs on the pump that is on, the unit is shut off then turned back on with the other pump operating. A pump fault is reported.
- Saved in fault memory
- Machine fault output on
- Pump 1 fault relay on optional board in On position
- General fault LED on console flashes
B) If a fault occurs on the second pump as well, the unit is shut off and the following message appears:
- Saved in fault memory
- Machine fault output on
- Pump 1 fault relay on optional board in On position
- Pump 2 fault relay on optional board in On position
- General fault LED on console lit steady
C) If the machine is turned on:
- The available pump (i.e. without a fault) is turned on and the faulty pump is reported.
9.8 Compressor protection

Operation:
Information is received by the following open inputs:
- Terminals 1-2 on terminal block J5 on motherboard: Stage 1, circuit 1
- Terminals 2-3 on terminal block J5 on motherboard: Stage 2, circuit 1
- Terminals 1-2 on terminal block J2 on circuit 2 ADD2 board:
Stage 1, circuit 2
- Terminals 2-3 on terminal block J2 on circuit 2 ADD2 board:
Stage 2, circuit 2
These inputs are read 10 seconds after a mains power failure (slowness of switch INT69 causing a fault). They must be open for more than
5 seconds for the fault to be taken into account.

Main circuit fault:
- Corresponding circuit shut off; fault displayed on LCD
- Circuit fault LED lit steady
- Fault stored in memory in case of a mains power failure - Fault saved in fault memory
- Relay in On position
- Stage x fault relay on relay board in On position
This fault must be acknowledged manually and the motor fault must disappear (closed).

Display:
Saved in fault memory

Resetting: Press Reset
9.9 Manual HP pressure switch fault on circuit 1 or 2

Operation:
These two inputs monitor the status of the HP pressure switches
on each refrigerating circuit. They are associated with the operation of their respective circuits.
They are read 3 seconds after a stage on the circuit turns on.

If a fault occurs:
- Corresponding circuit shut off.
- General fault output on - Circuit x HP fault relay on optional board in On position
- Circuit LED on console lit steady.

Display:
Saved in fault memory

Resetting:
Reset the HP switch manually then reset the fault by pressing Reset .
M A C H I N E O F F
P U M P 1 F A U L T
P U M P X F A U L T
B A C K U P P U M P O N
M A C H I N E O F F
P U M P 1 A N D 2 F A U L T
M O T O R F A U L T
S T A G E x C I R C U I T x
x - M O T O R S T A G E x C I R x
C I R C U I T X O F F
M A N U A L H P F A U L T
x - M A N U A L H P x