138 Functional description CG Drives & Automation 01-7492-01r1
11.3.10Pump/Fan Control [390]
The Pump Control functions are in menu [390]. The
function is used to control a number of drives (pumps, fans,
etc.) of which one is always driven by the AC drive.
Pump enable [391]
This function will enable the pump control to set all relevant
pump control functions.
Number of Drives [392]
Sets the total number of drives which are used, including the
Master AC drive. The setting here depends on the parameter
“Select Drive [393]”. After the number of drives is chosen it
is important to set the relays for the pump control. If the
digital inputs are also used for status feedback, these must be
set for the pump control according to; Pump 1 OK– Pump6
OK in menu
[520].
Select Drive [393]
Sets the main operation of the pump system. 'Sequence' and
'Runtime' are Fixed MASTER operation. 'All' means
Alternating MASTER operation.
391 Pump enable
Default: Off
Off 0 Pump control is switched off.
On 1
Pump control is on:
- Pump control parameters [392] to
[39G] appear and are activated
according to default settings.
- View functions [39H] to [39M] are
added in the menu structure.
392 No of Drives
Default: 2
1-3 Number of drives if I/O Board is not used.
1-6
Number of drives if 'Alternating MASTER' is
used, see Select Drive [393]. (I/O Board is
used.)
1-7
Number of drives if 'Fixed MASTER' is
used, see Select Drive [393].
(I/O Board is used.)
NOTE: Used relays must be defined as Slave Pump or
Master Pump. Used digital inputs must be defined as
Pump Feedback.
393 Select Drive
Default: Sequence
Sequence 0
Fixed MASTER operation:
- The additional drives will be selected in
sequence, i.e. first pump 1 then pump
2 etc.
- A maximum of 7 drives can be used.
Run Time 1
Fixed MASTER operation:
- The additional drives will be selected
depending on the Run Time. So the
drive with the lowest Run Time will be
selected first. The Run Time is
monitored in menus [39H] to [39M] in
sequence. For each drive the Run
Time can be reset.
- When drives are stopped, the drive
with the longest Run Time will be
stopped first.
- Maximum 7 drives can be used.
All 2
Alternating MASTER operation:
- When the drive is powered up, one
drive is selected as the Master drive.
The selection criteria depends on the
Change Condition [394]. The drive will
be selected according to the Run
Time. So the drive with the lowest Run
Time will be selected first. The Run
Time is monitored in menus [39H] to
[39M] in sequence. For each drive the
Run Time can be reset.
- A maximum of 6 drives can be used.
NOTE: This menu will NOT be active if only one drive
is selected.
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