Franklin Electric CERUS X-DRIVE CXD-003A-4V Скачать руководство пользователя страница 76

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OPERATION

Control Options

Lubrication Relay

The VFD has the capability to automatically activate a lubrication solenoid for line shaft turbine pumps. For
industrial machines with an external lubrication supply, it can also activate it before starting the motor.
Timers are available to enable lubrication before, during, and/or after running the motor, in any combina

tion.
To enable the lubrication function, set the following parameters:

Lubrication Output Relay [IO–47] through [IO-49]:

Use one of the Relay Outputs (RA1–RA3), and set the

corresponding parameter to

41_Lube/S-Clean

Lube/S-Clean [IO–41]:

Select

1_Lubrication

Pre-Lube Timer [IO–43]:

This setting determines relay activation time after a run command is received and

before the VFD starts. When the timer expires, the lubrication relay will be deactivated and the VFD will
start the motor. If a stop command is received or the VFD trips during Pre-lubrication, the relay will be deac

tivated.

Run-Lube Timer [IO–44]:

This setting determines relay activation time while the VFD is running.

•

When set to a value greater than 0 and less than 6000, the relay will be activated at VFD start and will
deactivate when the timer expires. If the VFD stops while the timer is active, the relay will deactivate.

•

If the timer is set to the maximum 6000 sec, the relay will be activated during run mode until the VFD
stops (no timing). If the VFD stops or trips, the relay will deactivate.

Post-Lube Tmr [IO–45]:

This setting determines relay activation time after the VFD comes to a stop (0 Hz).

Screen Clean Relay

When water is pumped from a lake or pond, the suction screen requires periodic cleaning. The VFD can
automate this process by providing a relay output to an external solenoid valve that will discharge pressur

ized water to clean the screen. This feature works only in run mode in HOA Hand or Auto.
The VFD provides a one minute (non-adjustable) cleaning pulse at every start. When the cleaning pulse is
done, the

S-Clean Timer [IO–42]

starts. When the timer expires, another cleaning pulse is activated. This cycle

continues until the VFD stops.
To enable the Clean Screen function, set the following parameters:

Screen Clean Output Relay [IO–47] through [IO-49]:

Use one of the Relay Outputs (RA1–3), and set the

corresponding parameter to

41_Lube/S-Clean

Lube/S-Clean [IO–41]:

Select

2_Screen Clean

S-Clean Timer [IO–42]:

Time between cleaning pulses.

Clean Pump/Anti Jam (De-ragging and impeller cleaning)

In de-watering and wastewater pump applications, the Clean Pump feature will provide periodic (set by

Clean Pump Tmr [ADV2-56]

) fast ramping starts to clean the impeller. VFD will ramp up to half speed and run for

5 seconds in Forward direction during VFD stop mode with a “Clean Pump” message. This will prevent the
accumulation settling in the pump and impeller.

NOTE:

The Clean Pump feature only works in Auto mode when a run command is removed by DI, AI

Trigger or Comms (Sleep mode excluded).