TECO F33 Series, Instruction Manual, Page: 108 / 192

Functional Description 105
Communication information
Change Condition [394]
This parameter determines the criteria for changing the
master. This menu only appears if Alternating MASTER
operation is selected. The elapsed run time of each
drive is monitored. The elapsed run time always deter-
mines which drive will be the 'new' master drive.
This function is only active if the parameter Select Drive
[393]=All.
Communication information
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 low-
est 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.
Modbus Instance no/DeviceNet no: 43163
Profibus slot/index 169/67
Fieldbus format UInt
Modbus format UInt
NOTE: This menu will NOT be active if less than 3 drives
are selected.
Default: Both
Stop 0
The Runtime of the master drive deter-
mines when a master drive has to be
changed. The change will only take place
after a:
- Power Up
- Stop
- Standby condition
- Trip condition.
A
394 Change Cond
Stp Both
Timer 1
The master drive will be changed if the
timer setting in Change Timer [395] has
elapsed. The change will take place imme-
diately. So during operation the additional
pumps will be stopped temporarily, the
'new' master will be selected according to
the Run Time and the additional pumps will
be started again.
It is possible to leave 2 pumps running dur-
ing the change operation. This can be set
with Drives on Change [396]
.
Both 2
The master drive will be changed if the
timer setting in Change Timer [395] has
elapsed. The 'new' master will be selected
according to the elapsed Run Time. The
change will only take place after a:
- Power Up
- Stop
- Standby condition.
- Trip condition.
Modbus Instance no/DeviceNet no: 43164
Profibus slot/index 169/68
Fieldbus format UInt
Modbus format UInt
NOTE: If the Status feedback inputs (DigIn 9 to Digin 14)
are used, the master drive will be changed immediately
if the feedback generates an 'Error'.