Zener ECODRIVE 8000 Installation Manual Supplement page 44

ZENER VARIDRIVE SOLUTIONS
Idle Threshold
Idle threshold
35.0 %
AC
Time before Idle
Time before idle
AC
5 secs
Resume Pumping
Resume pumping @
50.0% below SV
AC
WARNING!
High & Low pressure trip is for operational purposes only. Separate independent methods must be
employed to prevent economic loss.
Lo Pressure trip
Lo pressure trip
2.5bar
AC
Hi Pressure trip
Hi pressure trip
8.0bar
AC
Fill Fail Time
Fill Fail Time
60sec
AC
Fill to pressure
Fill to Pressure
2.0bar
AC
Filling Speed
Filling Speed
25Hz
AC
IM00130
The % Load recorded at step 5 will initially be used as the idle mode threshold. Add a small
margin of 2 or 3% to ensure the idle function will activate. If pump operation develops a
load at or below this value, the idle timer begins timing. If the load remains unchanged for
the idle interval the ECODRIVE will go to the idle state.
Set to 0% to disable or when an external flow switch is being used to trigger idle mode.
The Idle delay interval controls the amount of time the pump is permitted to operate
below the load recorded in step 5. Verify the value is acceptable and alter as required.
This parameter is also used when a flow switch is used.
The ECODRIVE will return to pumping operation when the pressure drops below the
"Return from Idle" threshold which is expressed as a % below the required pressure set
point value (SV).
The low pressure trip is generated if the pressure has not risen above the threshold value
in the set time. The occurrence of this trip suggests a problem with the plumbing, such as
a burst pipe. This parameter is the threshold for pressure detection. Verify the value and
alter as required. The default trip time is default at 30 seconds. Refer to page 45 to modify
the trip time.
The high pressure trip is generated if the pressure rises above the threshold value. The
occurrence of this trip suggests a problem with the plumbing like a blocked pipe. This
parameter is the threshold for high pressure detection. Verify the value and alter as
required. The trip time is default at 0 seconds. Refer to the ZENER 8000 manual to modify
this.
The ECODRIVE can be configured to run at a preset speed to fill the pipes to a specified
pressure before switching over to PID/pressure control mode. If it fails to reach that
pressure within the set 'Fill Fail Time' a trip will occur.
The pressure in which the fill mode switches over to PID / Pressure control mode.
The preset speed to fill the pipes before operating on PID / pressure control mode.
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ZENER ECODRIVE® 8000
20/07/2018 3:59 PM