Speed Reference 2-145
Trim
[Trim In Sel]
Reference A and Reference B can be trimmed with a selectable source. The
trim is an input signal value (+/-) which ia added to the reference. If an
analog input is chosen as the trim source, two scale parameters are provide
to scale the trim signal.
The choices for Trim source select are:
• LED HIM
• DPI Peripheral 1 (LCD HIM)
• DPI Peripheral 2 - 5
• MOP
• Preset Speed 1 - 7
• Analog Input 1 - 2
Min / Max Speed
[Max Speed]
Max and min speed limits are applied to the reference. These limits apply to
the positive and negative references. The min speed limits will create a band
that the drive will not run continuously within, but will ramp through. This
is due to the positive and negative min speeds. If the reference is positive
and less than the positive min, it is set to the positive min. If the reference is
negative and greater than negative min, it is set to the negative min. If min is
not 0, hysteresis is applied at 0 to prevent bouncing between positive and
negative mins. See below.
Trim Enable Select
+
+
+
+
Trimmed
Reference A
Trimmed
Reference B
Reference B
Reference A
Tr im
A
B
Both
None
Band
Max Spd
Min Spd
– Max Spd
Max Spd
Min Spd
– Min Spd
– Max Spd
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