1.
Select Pump 4 with parameter P3.15.19.3.
2.
Set parameter P3.15.19.2 value to 0 h.
3.
Push the button-type parameter P3.15.19.1.
4.
Pump 4 Running Time is reset.
P3.15.19.4 PUMP RUNTIME ALARM LIMIT (ID 1109)
Use this parameter to set the alarm limit for the runtime counter of the pump.
When the value of the pump runtime counter goes above this limit, a runtime counter alarm
occurs.
P3.15.19.5 PUMP RUNTIME FAULT LIMIT (ID 1110)
Use this parameter to set the fault limit for the runtime counter of the pump.
When the value of the pump runtime counter goes above this limit, a runtime counter fault
occurs.
10.16.7 ADVANCED SETTINGS
P3.15.22.1 STAGING FREQUENCY (ID 15545)
Use this parameter to adjust the output frequency level at which the auxiliary motor starts in
the Multi-pump system.
NOTE!
The parameter has no effect, if its value is set above Max Frequency Reference
(P3.3.1.2).
By default, an auxiliary pump starts (is staged), if the PID feedback signal goes below the
specified bandwidth area and the pump that controls the system operates at the maximum
frequency.
The auxiliary pump can start at a lower frequency to get better process values or to use less
energy. Then, use the parameter to set the start frequency of the auxiliary pump below the
maximum frequency.
M
PID Feedback
P
Banwidth Delay
Start Aux Pump
V
M
Output Freq
M
PID Setpoint
P
Freq Ref Max
P
Staging Freq
P
Bandwidth
LT
IN1
IN2
GT
IN1
IN2
MIN
IN1
IN2
SUB
IN1
IN2
AND
IN1
IN2
ON-DELAY
IN OUT
TIME
Fig. 102: Staging frequency
PARAMETER DESCRIPTIONS VACON · 341
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