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| HPI Combi Flow User Guide |
Version 3.11
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Par.
Name
Minimum
Maximum
Default
Units
P8-06
Load Monitor Enable
0
4
0
-
This parameter enables the Total Motor Current Profile Monitoring Function, 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 Current Detection Enabled (Belt Failure / Dry Pump / Broken Impeller)
2 : High Current Detection Enabled (Pump Blockage)
3 : Low and High Current Detection
4 : Low and High Current Detection, warning only.
Bit 7 of the status word goes high in the event of a high or low current
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
Amps
This parameter sets a bandwidth around the Motor Current profile generated by P8-06. If P8-06 has been set to an appropriate value
to detect a high /low current 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
Seconds
This parameter sets a time limit for the Motor Current profile generated by P8-06. If P8-06 has been set to an appropriate value to detect
a high /low current 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 / Rpm
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
P8-12
Bypass In Fire Mode
0
1
0
-
Parameter configures the drive to switch to bypass mode automatically should an input to the drive be configured for Fire Mode operation
and that input becomes active. When enabled the drive standard relays 1 and 2 are dedicated to bypass control and cannot be
assigned other functions.
0 : Disabled
1 : Enabled
P8-13
Bypass Contactor Change Over Time
0
30
2
Seconds
Parameter active when Bypass function is enabled. Parameter P8-05 sets a time delay or changeover time between the switching of the
drive relays controlling the bypass circuitry.
Care must be taken when setting P8-13 to ensure that drive and DOL contactors are not switched in circuit simultaneously.
Both
Mechanical and Electrical interlocking of drive and DOL contactors to regional standards are recommended
in configuring the Bypass function.
9
Extended P
arameters
