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Yaskawa CIMR-V7AUXXXX1-052 User Manual

Page 5

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Date: 07/01/04, Rev: 04-07

Page 5 of 6

TM.V7SW.052

4.3 Frequency Reference Trim Control Function

When the trim control increase multi-function input is closed, the control trim level will be added to the
frequency reference. When the trim control decrease multi-function input is closed, the trim control level
will be subtracted from the frequency reference. The inverter must be in remote mode and the frequency
reference must be non-digital (n004 ≠ 1) for trim control to function. Also, trim control is disabled when
any of the multi-step speed reference inputs are closed. The trim control level is determined by the
frequency reference, n045 (Trim Control Level at Max Frequency), and n046 (Trim Control Level at Min
Frequency). See Figures 3.0 and 4.0 below.

n016

(Min Frequency)

n011

(Max Frequency)

n045 (Trim control level

at max frequency)

n046 (Trim control level
at min frequency)

Frequency Reference

(Before Trim Control)

Trim Control Level

Hz

%

Figure 3.0 Frequency Reference Trim Control Level Calculation Graph