Operation
12
3A4586E
Reverse Motor Direction
NOTE: VFD Parameter P112 controls the direction of
motor rotation. The VFD is shipped with the rotation set
to forward as a default.
1.
Verify which direction the pump is rotating.
2.
Press the M key to access the VFD menu.
3.
Scroll to P112, using the arrow keys.
4.
Press the M key again.
5.
00 will display on the screen. Use the arrow keys to
set the display to 01. This allows both forward and
reverse rotation.
6.
Press the M key to enter the setting. The screen will
display STOP or the last frequency setting.
NOTE: To use this feature when operating the pump,
press the R/F key, then the M key. The drive will slow
and the motor will reverse direction. Press the RUN key
and check that the roller is moving in the opposite direc-
tion.
Adjust the Speed
Use the arrow keys on the VFD control panel to
increase or decrease the motor speed.
Pump Shutdown
The output pressure will drop as soon as the motor is
turned off. Any low viscosity fluid in the inlet tube of an
impeller pump will fall to the level of the fluid of the
source vessel. Higher viscosity fluids in an impeller
model or any progressive cavity pump will remain at the
level at the time of shutdown.
Pump shutdown is possible using the ON/OFF switch on
the motor.
