Issue:
Set up Plus/Minus Speeds on the Altivar Process Drive.

Product Line:
Altivar Process Drive (ATV630, ATV930, ATV650, ATV950, ATV660, ATV960, ATV680, ATV980)

Environment:
All serial numbers for Altivar Process Drive

Resolution:



To Program the +/- Speeds

1. [Complete settings] [Command and Reference]
2. Set [Freq Switch Assign] rFC to [Ref Freq Channel 2] FR2
3. Set [Ref Freq Channel 2] FR2 to [Ref Frequency via DI] UPdt
4. Go to [Complete settings] [Generic functions] [+/- speed]
5. Assign [+ Speed Assign] USP
6. Assign [- Speed Assign] dSP
7. Assign [Ref Frequency Save] Str
   
   To adjust the increment of plus and minus speed, adjust the ACC and DEC. If ACC is set to 6 seconds, it will ramp 10 Hz for every second that the +speed is active (60Hz range / 6sec = 10Hz/sec).  Keep it active for 6 seconds and output will reach 60 Hz. To make +speed increase at a slower rate, increase ACC.  To make it faster, decrease ACC.  The same logic applies to -speed and DEC.
   

Reference the attached document for more information

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