Example 3: Remote Sequence (3-Wire) & Speed Potentiometer
- ix -
This configuration is best when a person rather than an external controller (PLC, relay, etc.) controls the drive.
Both potentiometers ((R1) & (R2)) should have a resistance value between 2000
Ω
and 3000
Ω
and be rated for
at least 1 Watt. The trim pot is optional, but without it the manual speed pot will output 10V (60 Hz) at just two-
thirds of its rotation.
OPERATION:
•
Close pushbutton (PB1) momentarily while pushbutton (PB2) is closed and the drive will start.
Pushbutton (PB1) does
NOT
need to be maintained.
•
Open pushbutton (PB2) at any time and the drive will stop.
•
If switch (S1) is open the drive will run in the forward direction. If switch (S1) is closed, the drive will run in
the reverse direction. Switch (S1) can be operated with the drive running at any speed.
•
Frequency reference is proportional to the signal level at Terminal FV.
0V = 0 Hz, 5V = 30 Hz, & 10V = 60 Hz.
•
If the
LOCAL / REMOTE
key is pressed, the drive will behave the same as illustrated in Example 1.
Table 4: Programming Required For Remote 3-wire Sequence & Speed Pot Reference
Parameter Display Description
n001
Password
9
The drive will perform a 3-wire reset.
CAUTION:
Setting this value will reset all parameters to their
original factory settings (all previous adjustments will be lost)
When the drive completes the reset, this parameter returns to a
value of 1.
n001 Password
3
After doing the reset above, the password parameter returned to a
1. Change it to a 3 to get access to all parameters in the drive.
Quick Start
Display
Motor Rated FLA
X.X A
Enter the motor’s full load amps (as shown on the motor
nameplate).
NOTE: After the above adjustments have been made, the DRIVE, SEQ, REF and STOP LEDs will be
illuminated.
After the programming is complete, the trim pot needs to be calibrated. Press
DSPL
until the “Frequency
Reference” quick start display is on the screen. Verify that the SEQ and REF LEDs are illuminated. Turn the
Speed Pot (R1) all the way up. Adjust the trim pot (R2) so that the “Frequency Reference” display is just
flickering between 59.99 Hz and 60.00 Hz. This completes the trim pot calibration.
GPD506/P5
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