The priming pump function controls a priming pump with a digital output signal. You can set
a delay to start the priming pump before the main pump starts. The priming pump operates
continuously while the main pump operates.
Start
Command
(Main Pump)
Priming Pump
Control
(Digital Output Signal)
Output Freq
(Main Pump)
Priming
Time
Fig. 92: The Priming pump function
P3.21.3.1 PRIMING FUNCTION (ID 1677)
Parameter P3.21.3.1 enables the control of an external priming pump with a digital output.
You must first set priming pump control as the value of the digital output.
P3.21.3.2 PRIMING TIME (ID 1678)
The value of this parameter tells how much before the start of the main pump the priming
pump must start.
9.19 TOTAL AND TRIP COUNTERS
The Vacon
®
AC drive has different counters based on the operation time of the drive and the
energy consumption. Some of the counters measure total values and some can be reset.
The energy counters measure the energy that is taken from the supply network. The other
counters are used to measure, for example, the operation time of the drive or the run time of
the motor.
It is possible to monitor all the counter values from the PC, keypad or fieldbus. If you use the
keypad or the PC, you can monitor the counter values in the Diagnostics menu. If you use
fieldbus, you can read the counter values with the ID numbers. In this chapter, you find data
on these ID numbers.
9.19.1 OPERATING TIME COUNTER
It is not possible to reset the operating time counter of the control unit. The counter is in the
submenu Total counters. The value of the counter has 5 different 16-bit values. To read the
value of the counter through fieldbus, use these ID numbers.
VACON · 314 PARAMETER DESCRIPTIONS
9
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