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Service parameters
Display information
Parameters 724 through 738 provide operational
information including the number of hours run, cycles,
and the state of the relay for each pump.
Par. 724 - 727 Pump-on time
(PUMP x ON TIME)
Parameter number
724
725
726
727
Value:
h
Function:
The relay timer accumulates the hours (h) the
pump has run (the relay switched on). The counter
is updated 10 times per hour which means that
cycles less than 6 minutes are not registered.
The hours can be reset to zero when a pump
is replaced since the cascade controller uses
parameter 736, Relay On Time, to determine
cycling patterns.
Par. 728 - 731 Pump cycles
(PUMP x CYCLES)
Parameter number
728
729
730
731
Value:
No.
Function:
The cascade controller counts the number (No.)
of times each relay (pump) is switched on. The
cycle counter can be reset to zero when a pump
is replaced.
Par. 736 Relay-on time
(RELAY ON TIME)
Value:
h
Function:
The relay timer accumulates the hours (h) each
relay has been switched on and is used by the
cascade controller to determine the cycling pattern.
This counter cannot be reset. A new pump
will not compensate for older pumps. The new
pump will cycle in regular rotation.
58
Pump number
Pump 2
Pump 3
Pump 4
Pump 5
0 - 130000
Pump number
Pump 2
Pump 3
Pump 4
Pump 5
0 - 130000
0 - 130000
Cascade Controller Option
Par. 737 Relay cycles
(RELAY CYCLES)
Value:
No.
Function:
The relay timer accumulates the number (No.) of
times each relay has been switched on and is used
by the cascade controller to determine the cycling
pattern. This counter cannot be reset.
Par. 738 Calculated intermediate setpoint
(SETPOINTS HM 1 - 7)
Value:
(set by Par. 415)
Function:
The intermediate setpoint is used internally by
the cascade controller to calculate the system
setpoint. This parameter displays the setpoint for
information. Setpoint data is entered in parameters
418, Setpoint 1, and 419, Setpoint 2.
MG.60.I3.02 - VLT is a registered Danfoss trademark
0 - 130000
sp 1 - sp 2
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