Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX - Manual (Page 154)

9-14 Applications
In this example, the remote pot is set to use the 10V input. You could
also set it up to use the -10V input. An In 1 Offset (parameter 97) is
set to 0, and An In 1 Scale (parameter 98) is set to 2 to provide the full
-4096 to 0 or 0 to +4096 internal drive units based on the switch
position. A link was also made so that Torque Ref 1 (parameter 69)
would receive the value of An In 1 Value (parameter 96) as its torque
reference.
Using MOP The MOP, or Manually Operated Potentiometer, feature lets you use
inputs to the L Option board to control the speed or torque of the
drive. You must have an L Option board to access the MOP feature.
To use the MOP feature, you need to:
1. Set L Option Mode (parameter 116) to a value of 5, 9, 10, or 15.
You must use one of these modes because these are the only
modes that provide access to Digital Pot Up/Dn.
2. Set Mop Increment (parameter 118) to a value in rpms/second.
This value sets the rate of increase or decrease to the MOP.
3. Link Mop Value (parameter 119) to either a speed or a torque
reference. For example, you could link Mop Value to Speed Ref 1
(parameter 29) if you want the drive to follow the MOP command
for speed.
When the Digital Pot Up is true, the value of Mop Increment is added
to Mop Value, and when the Digital Pot Dn is true, the value of Mop
Increment is subtracted from Mop Value. This lets you control the
speed through the MOP as shown in Figure 9.8.
Figure 9.8
Example of the MOP Feature
Using Flying Start The flying start feature lets you start a drive when the connected
motor is rotating. When you activate the flying start feature, the drive
starts at either the last known speed or a speed that you enter.
As an example, you want to reconnect to a motor that is rotating at
860 rpm. You set Fstart Select to 2 and set Fstart Speed to +1780
rpm. The drive searches for 1.34 seconds and then reconnects to the
motor at +737 rpm. Figure 9.9 illustrates this example.
Digital Pot Up = True
Digital Pot Up = False Digital Pot Dn = True
Digital Pot Dn = False
Mop Value
Signal