Installation manual

Configuration Mode (ConF)
S1A28692 03/2010 171
+/- SPEED AROUND A REFERENCE
The reference is given by [Ref.1 channel] (Fr1) or [Ref.1B channel] (Fr1b) with
summing/subtraction/multiplication functions and preset speeds if relevant (see the diagram on page 132). For
improved clarity, we will call this reference A. The action of the +speed and -speed keys can be set as a % of
this reference A. On stopping, the reference (A +/- speed) is not saved, so the drive restarts with reference A+
only.
The maximum total reference is limited by [High speed] (HSP) and the minimum reference by
[Low speed] (LSP), see page 75
.
Example of 2-wire control:
+ SrP%
Reference A +
-speed
Direction of operation
Forward
Forward
Reverse
+speed
- SrP%
- SrP%
+ SrP%
Reference A -
LSP
LSP
Motor frequency
[Acceleration 2] (AC2)
[Deceleration 2] (dE2)
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