53
If
≥ 3 stops in 1 hour
If a fault occurs:
- Pump 2 is shut off
- Thermodynamic stages shut off; auxiliary heaters may remain on
- Saved in fault memory
- Fault output on
- General fault LED on console flashes
- The time delay value obtained is stored in memory so that it
can be applied the next time the pump is turned on.
- The increased time delay is reset if P109 is changed.
Display
Resetting: Press
Reset
9.4 Fan fault (circuits 1 and 2)
Fan faults are managed in series. As a result, there is only one
fan fault input. Faults are read on terminals 5-6 of terminal
block J6.
When P121 = Yes or P10 = Pressure, this input should not be
read until 10 seconds after the unit is turned on and IS NOT
TAKEN INTO ACCOUNT WHEN THE UNIT IS SHUT OFF.
If P10
≠ centrifugal:
If a fault occurs:
- Machine and fans shut off by HP safety.
- Fault saved to fault memory
- Fan fault relay on relay board in On position
- General fault LED on console flashes
- Fault acknowledged automatically when input closed
Si P10 = centrifugal:
If a fault occurs:
- Machine shut off because fan shut off
- Fault saved to fault memory
- General fault relay on relay board in On position
- General fault LED on console lit steady
- Fault acknowledged manually
Display:
Saved in fault memory
Resetting:
When the input is closed the fault is acknowledged automatically
Special case: a fan fault will turn off units in the LJA range (air-to-
water and centrifugal fan).
9.5 Expansion valve fault
If P42 = ALCO
This configuration corresponds to using the electronic expansion
valve with the Alco driver module and display.
Only fault feedback signals from the valve are managed in this
case.
The fault signal contact on the electronic expansion valve on
circuit 1 must be wired to terminals 5-6 on terminal block J5 on
the motherboard. The contact on the valve on circuit 2 must be
wired to terminals 5-6 on terminal block J2 on ADDitional board 2
for circuit 2.
Operation:
Corresponding circuit shut off when its input opens.
If
3 shutdowns occur in 24 hours
If a fault occurs:
- Corresponding circuit shut off
- Fault output on
- Saved in fault memory
- Circuit fault LED on console flashes
- Number of faults over a 24-hour period managed.
Display:
If
3 shutdowns occur in 24 hours
If a fault occurs:
- Corresponding circuit shut off
- Fault output on
- Saved in fault memory
- Circuit fault LED on console lit steady
- Number of faults over a 24-hour period managed.
Display:
M A C H I N E O F F
W A T E R F L O W F A U L T
M A C H I N E S T A T U S
F A N F A U L T
x - F A N
F A U L T O N E X V X
X C U T S I N 2 4 H
C I R C U I T X O F F
E X P . V A L V E F A U L T
Содержание Magister 2 Series
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