Video: How do I configure Plus/Minus speed control on an Altivar Process drive?

Configuration Steps:

1. Go to [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. Navigate to [Complete Settings] → [Generic Functions] → [+/- Speed]
5. Assign a digital input to [+ Speed Assign] (USP)
6. Assign a digital input to [- Speed Assign] (dSP)
7. Assign a digital input to [Ref Frequency Save] (Str)

How It Works:

• The + Speed input increases frequency while active.
• The – Speed input decreases frequency while active.
• The ACC (Acceleration) and DEC (Deceleration) settings determine how quickly the speed changes.

Example:
If ACC = 6 seconds on a 60 Hz drive, the speed increases at 10 Hz per second (60 Hz ÷ 6 s).

• Increase ACC → slower speed change
• Decrease ACC → faster speed change
• The same principle applies to DEC for decreasing speed

Check the next video for an step by step walkthrough or reference the attached document for more information