Operation
3A4586E
11
Initial Configuration (17N668
motor with Graco VFD)
For initial setup, review at least the following menus to
configure the system to suit your particular needs. See
your VFD manual for detailed information about each
menu option and about default settings.
1.
VFD Parameter P103 controls the maximum fre-
quency (the top end of manual speed) of running
your pump. This setting is NOT your operating fre-
quency. It is the maximum limit of operating fre-
quency.
2.
VFD Parameter P108 controls motor overload. Set
so that the VFD cannot supply more current to the
motor than it can handle. The formula for the set
value is:
X = Motor current rating x 100/VFD output current
rating
3.
VFD Parameter P171 controls the absolute current
limit. It is set to allow for momentary spikes in cur-
rent above the limit set in P108. A spike occurs, for
example, when the roller passes over the double
hose section. This parameter is usually set for 2 to 3
times the value on menu P108, which was calcu-
lated in the previous step.
4.
VFD Parameter P112 controls the direction of motor
rotation. See Reverse Motor Direction, page 12.
5.
VFD Parameter P104 (optional) controls the rate at
which the motor will ramp up to the set speed.
6.
VFD Parameter P166 (optional) allows for adjust-
ment to the noise that the motor creates. Each set-
ting changes the tone.
Graco VFD Operation (17N668
motor)
VFD Control Panel
NOTE: For complete information about the VFD, see
the manufacturer’s instructions supplied with the VFD.
•
The control panel display shows the status of the
motor. It also shows the direction of motor rotation:
FWD (forward) or REV (reverse).
•
The green RUN key starts the motor.
•
The red STOP key stops the motor.
•
Use the arrow keys to speed up or slow down the
motor.
•
The blue R/F key changes the motor rotation (see
Reverse Motor Direction, page 12).
•
The blue M key accesses the VFD menu. See the
manufacturer’s instructions for menu descriptions
and information.
If the M key is pressed, use the arrow keys to scroll
through the VFD menu.
Factory Settings
VFD settings are preset at the factory for most applica-
tions. See Initial Configuration (17N668 motor with
Graco VFD), page 11, to change the default settings as
needed to suit your needs.
FWD
AUTO
REV
STOP
RUN
