1.3.8.
Parameter Group 8 – Application Specific Parameters
Par.
Name
Minimum
Maximum
Default
Units
P8-01
Stir Interval Duration
0
60000
0
s
This parameter can be used to set a pre-defined period of inactivity, whereby if the drive remains in standby mode for a period of time
exceeding the limit, stir function is activated, and the drive will operate at preset speed 7 (P2-07) for the time set in P8-02. This allows
the pump to stir, preventing sediment from settling and avoiding a blockage.
P8-02
Pump Stir Activation Time
1
6000
10
s
Set the time period that the stir function will be active once triggered (excludes time for deceleration to stop)
P8-03
Pump Clean Function Select
0
3
0
-
This parameter configures the drive conditions that will cause activation of the automatic pump clean function. When activated, the
pump clean will operate the pump at preset speed 5 (P2-05) for the time period set in P8-04, followed by Preset Speed 6 (P2- 06)
(Providing P2-06 <> 0) for the time set in P8-04, before resuming normal operation. During the cleaning cycle, the ramp time set in P8-
05 is used for both acceleration and deceleration, and overrides P1-03 and P1-04.
Where possible, P2-05 and P2-06 may be set to negative values, to allow the pump to be reversed. For best results, it is recommended
to use as high a speed as possible, and to adjust P8-05 to allow a short acceleration time whilst avoiding over current trips.
0 : Disabled
1 : Active on start-up only. The pump cleaning function operates every time the pump is started.
2 : Active on start-up and over-torque detection. The pump cleaning function operates every time the pump is started, and also in the
event that the drive detects a possible pump blockage during normal operation. This requires the Load Profile Monitoring function to
be active and commissioned for correct operation, see parameter P8-06.
3 : Active on over-torque detection only. The pump cleaning function operates only when a possible pump blockage is detected
during normal operation. This requires the Load Profile Monitoring function to be active and commissioned for correct operation, see
parameter P8-06. Note: The pump clean function can also be activated by digital input configured in group 9 parameters
P8-04
Pump Cleaning Time
0
600
0
S
Sets the time period for the operation of the pump cleaning cycle. When bi-directional pump cleaning is selected, the time interval is
used twice, once in each direction.
P8-05
Clean Function Ramp Time
0.0
6000
30
s
Independent ramp rate used only for the pump automatic cleaning function (see P8-03) when the motor is Accelerated as part of
the cleaning cycle.
P8-06
Load Monitor Enable
0
3
0
-
This parameter enables the Load Profile Monitoring Function (load current monitoring), which can be used to detect belt failure in belt
driven fan applications, or Dry Pump, Pump Blockage or broken impeller in Pump applications.
0: Disabled
1: Low Load Detection Enabled (Belt Failure / Dry Pump / Broken Impeller)
2: High Load Detection Enabled (Pump Blockage)
3: Low and High Load Detection
4: Low and High Load Detection, warning only - bit 7 of the status word goes high in the event of a high or low load being detected
but the drive will not trip
Adjustment of parameter P8-06 (<>0) will cause the drive to automatically run the motor through its programmed frequency
range upon the next drive enable (input enable). Ensure the application is in a suitable condition to allow the motor to run
safely through its frequency range prior to enabling this feature.
P8-07
Load Profile Bandwidth
0.1
50.0
1.0
A
This parameter sets a bandwidth around the Load profile generated by P8-06. If P8-06 has been set to an appropriate value to
detect an over /under load condition and the drive operates outside of the bandwidth set in P8-07 for a period longer than that
defined by P8-08 then the drive will trip. Value entered in P8-07 is the value between the normal current and the trip level, hence
total bandwidth for the function is 2 x P8-07.
P8-08
Load Monitor Trip Delay
0
60
0
S
This parameter sets a time limit for the Load profile generated by P8-06. If P8-06 has been set to an appropriate value to detect an
over /under load condition and the drive operates outside of the bandwidth set in P8-07 for a period longer than that defined by
P8-08 and then the drive will trip.
P8-09
Fire Mode Logic
0
1
0
-
When Fire mode is assigned to a digital input on the drive then the logic configuration for the input is set by P8-09 to allow
normally open or normally closed activation. Default behaviour is for Input logic off (0) to activate fire mode (Open activation).
Input configuration for Fire mode is set by parameter P1-13 or can be user defined by the setting of P9-32.
0 : Open Activation
1 : Closed Activation
P8-10
Fire Mode Speed
-P1-01
P1-01
0
Hz
When set to a non-zero value, this parameter sets an operational fixed frequency / speed used when Fire Mode is selected. The
drive will maintain operation at this frequency until the fire mode signal is removed or the drive is no longer able to sustain
operation.
When P8-10 is zero, and fire mode is activated, the drive will continue to operate under the control of the selected speed
reference, dependent on parameter settings and digital input selection.
P8-11
Bypass Mode on Fault
0
1
0
-
Parameter configures the drive to switch to bypass mode automatically should a trip occur on the drive. When enabled the drive
standard relays 1 and 2 are dedicated to bypass control and cannot be assigned other functions.
0 : Disabled
1 : Enabled
