Xylem IM167 R8 Aquavar CPC (Centrifugal Pump Control) - Manual (Page 105)

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Parameter Name Value/Range Note(s)
10.01 PARAMETER LOCKED (Default) This parameter displays the status of the
OPEN parameter lock and can be used to lock
the parameters when necessary. To OPEN
the parameter lock, use parameter 10.02.
10.02 PASS CODE -Not Displayed- Using the arrow keys, scroll to the
number “66” and press enter. This will
open the parameter lock. Note - The
number entry will disappear once
ENTER has been pressed.
10.03 LOCAL LOCK OFF (Default) This parameter disables local control of
ON the drive (Start/Stop/setpoint changes).
10.06 SET POINT OFF (Default) This lock prevents the set point from
LOCK ON being changed on the control panel.
Must enter password first.
WARNING! It is not possible to stop the drive through the keypad with LOCAL LOCK
set to ON.
• Use LOCAL LOCK only with a remote (external) stop/start method.
• Keypad must be set in REMOTE before enabling LOCAL LOCK.
Minimum Speed Options
When the Aquavar CPC reaches the minimum speed that is set in parameter 14.02, it can be
programmed to stay at that minimum speed indefinitely, or to shut-down after a time delay.
This reaction applies to conditions where Aquavar is trying to regulate to a setpoint, when it
faults due to a secondary protect condition, or there is little or no process demand.
If the parameter 14.03 CONFIG SPEED MIN is set to MINIMUM FREQ the drive will stay at
minimum speed indefinitely, until the system demand increases, it is shutdown manually, or
a fault occurs forcing it to shutdown. If it is operating at minimum speed due to a Secondary
Protect fault, it will stay at minimum speed until the fault is reset.
If a Pump Protect condition exists and CONFIG SPEED MIN is set to MINIMUM FREQ, Aquavar
will try to reset the fault while at minimum speed if parameter 12.02 AUTO RESTART is set to
“ON” and parameter 24.06 ERROR RESET is set for the desired number of attempts. If the fault
has not cleared after the selected number of resets has been attempted, the pump will be
shut down. If parameter 24.06 ERROR RESET = 0, the pump will be shut down upon a Pump
Protect fault.
If parameter 14.03 CONFIG SPEED MIN is set to ZERO “0” (DEFAULT), the drive will stop the
pump for Pump Protect and Secondary Protect faults. The reaction to stop the pump when at
minimum speed can be delayed for up to 1800 seconds by programming parameter 14.04
(Stp Delay Min Spd).
For example, if the MINIMUM FREQ. is set for 35 HZ, and the Stp. Delay Min Spd is
set for 5 seconds, the pump will ramp down to 35HZ and remain at that speed for 5
seconds, then turn off. This is dependent upon the demand decreasing in the system.
Leaks will keep the pump running at slow speeds. Also check for properly seated check
valves and bladder tank pressure.
WARNING! It is not possible to manually set speed or frequency below the
MINIMUM SPEED setting in parameter 14.02
FEATURES