Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual

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ADVANCED APPLICATION OPTIONS
Multi-Drive Configurations
111
Multi-Drive Parameter Programming
Set the following parameters to enable a multi-drive network. Because the Master could change, the best
practice is to set all drives the same.
Multi-VFD Set [ADV–35]: This setting defines the number of drives in the system, including Lead, Lag,
Standby, and Jockey. Default= 0_Single VFD where one VFD controls one pump. MMC mode is available with
this selection.
Standby Pumps [ADV–36]: Defines the number of Standby pumps/drives that will be assigned. The maxi -
mum entry is equal to the total number of drives less the Lead and less the Jockey (if enabled).
Multi-VFD ID [ADV–37]: This setting is used to assign a unique identification number to each drive in the
system. IDs must be sequential without gaps. The Master will only recognize numbers up to the
[ADV–35]
total. If a Jockey is used, it must be assigned to the highest ID.
VLag Start Freq [ADV–38]: When Lead is running at a higher frequency than
[ADV–38]
and system pressure
is less than Setpoint [SET–21] – 2% for the duration of VLag Start Delay [ADV–39] , then Master will command Lag 1
drive to start. If more Lag drives are available, a Lag Run Timer will start. If conditions are still not met, the
next Lag drive will be started.
VLag Start Delay [ADV-39]: Sets a delay time to start Lag pump(s) when both frequency and pressure con -
ditions are met. Range = 0 to 600sec. Default= 10 sec.
VLag Stop Freq [ADV–40]: When Lead is running at a lower frequency than
[ADV–40]
and system pressure is
equal to or greater than Setpoint [SET–21] – 2%for the duration of VLag Stop Delay [ADV–41] , then Master will com -
mand Lag 1 drive to stop (first start—first stop). If more Lag drives are running, if conditions are met after
Lag Run Timer, the next Lag drive will be stopped.
VLag Stop Delay [ADV-41]: Sets delay time to stop Lag pump when both frequency and pressure. Range =
0 to 600 sec. Default= 5 sec.
VLead/Lag ID [ADV–42]: Set this value to the initial role of each drive in the network (Lead, Lag #, Standby
#, or Jockey). Settings can be changed by the Master during the alternation cycle.
NOTE: During initial setup, if
Multi-Pump ID [ADV-37]
is set to number greater than 0,
ADV-42
will be auto -
matically set to Lag with that number. Then it can be changed to Standby if the system has Lead-Lag-
Standby setup.
VLag Spd Source [ADV–43]: For each drive, this setting determines whether the drive will use 0_PID mode or
1_Lag Set Frequency
when assigned as a Lag.
VLag Set Freq [ADV–44]: Frequency the drive will use if running as a Lag with a range from PID Freq Low Limit
[SET-22]
to
PID Freq Max Limit [SET-23]
. Default= 55.00Hz.
Alternation [ADV–45]: This setting determines if and how the Lead role will be rotated through the net -
work, either by a set time interval or whenever the Master power is cycled. Default =
0_Disable
.
NOTE: If Master power was cycled quicker than next VFD master detection delay or the whole system
power is cycled, after system normal power-up it will alternate.
Alternate TMR [ADV–46]: This setting determines the length of time before the Lead alternates if [ADV–45]
is set to
1_Timer
.
VFD Ready [ADV–47]: For each drive, this setting determines whether or not the drive can be used as the
Master. The
1_Skip It
selection removes the drive from the Lead/Lag sequence, but it can be used as a Master.