SOLARDRIVE
PLUS
PROGRAMMING
GUIDE
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2.6.2.3. Dry-run Activation
The Dry-run function activates if both the following conditions are true:
-
Operation in Dry-run zone
-
Speed reference greater than the minimum value between
P711
and
C029
(with suitable adjustment
of the units of measures controlled internally to the drive)
If the Dry-run condition persists for a time longer than
P712
, the action defined in
P716
is carried out.
To facilitate testing or expand activation logics, parameter
P715
is available, allowing allocating an MDI to the
deactivation of the Dry-run function.
If the Dry-run function is active, resetting its activation is possible either manually (by pressing the reset
button on the keypad) or automatically if the system quits the Dry-run detection mode for a time longer than
P713
.
When
P716
is set as Alarm or Warning, the countdown of the automatic reset is displayed.
The automatic reset allows for the service re-activation without manual activation after a transient condition
has occurred, such as a transient lower level of water in a well.
2.6.2.4. List of Parameters P710 to P716
Parameter
Function
User Level
Default Value
MODBUS
Address
P710
Quantity for Dry-Run Detection
ADVANCED
1: Power factor
888
P710a
Low Frequency for Dry-Run Threshold
ADVANCED
0.00%
889
P710b
Dry-Run Threshold at Low Frequency
ADVANCED
0
890
P710c
High Frequency for Dry-Run Threshold
ADVANCED
100.00%
891
P710d
Dry-Run Threshold at High Frequency
ADVANCED
0
892
P711
Minimum Frequency for Dry-Run Enable
ADVANCED
0.00%
893
P712
Dry-Run Trip Time
ADVANCED
20.0 s
894
P713
Dry-Run Autoreset Time
ADVANCED
30 s
895
P714
Filter Time Constant for Detection Quantity
ADVANCED
300 ms
896
P715
MDI for Dry-Run Disable
ADVANCED
0: Disable
897
P716
Dry-Run Action Selector
ADVANCED
0: Disable
898