Rockwell Automation 1336 3-20HP FRN 1.01-3.01 - Manual (Page 87)

Startup
Chapter 9
9-9
Initial Operation Step 18ăPreset Frequencies
- Motor Disconnected (cont.)
If preset frequencies are not to be used, go to Step 19.
If Preset Frequencies 1-3 are used, set Parameter 72
(Activate Parameters 73-76) to 0 (Off). With the drive running, select each
of the preset frequencies by closing the inputs at Terminals 24 and 26 of
TB3. As each preset frequency is selected, the drive will ramp to that
frequency and remain there until the next frequency is selected.
If Preset Frequencies 4-7 are used, set Parameter 72
(Activate Parameters 73-76) to 1 (On) and repeat the procedure.
Step 19ăAccel and Decel Times
Estimate the time required for the motor to accelerate and decelerate
between Minimum Frequency (Parameter 16) and Maximum Frequency
(Parameter 19). With the drive running and controlled by the Control Panel
speed pot, check the accel time by turning the speed pot from fully
counterclockwise to fully clockwise.
Check the decel time by turning the speed pot from fully clockwise to fully
counterclockwise.
If the second accel and decel times are to be used (Parameters 30 and 31),
repeat the above procedure using the second accel and decel times.
Step 20
Stop
Stop the drive and remove input power to the drive. When the local
displays are no longer lit, remove the drive cover and verify that the DC
bus neon indicator is not lit and that the bus voltage at terminals +DC and
-DC on the power terminal block is zero. Reconnect the motor leads to the
drive and replace the drive cover. Set the Control Panel speed pot fully
counterclockwise.