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îš‹ Trim Control Function
The trim control function increments or decrements the frequency reference from analog input by the value set
in parameter d4-02 (Trim control level, set in% of maximum output frequency) using two digital inputs.
To use this function, set two of the parameters H1-01 to H1-05 (digital input S3 to S7 function selection) to 1C
(Trim Control Increase) and 1D (Trim Control Decrease).
îš„Related Parameters
Multi-function Digital Inputs (H1-01 to H1-05)
îš„Trim Control Increase/Decrease Command and Frequency Reference
The frequency references using Trim Control Increase/Decrease command ON/OFF operations are shown
below.
îš„Setting Precautions
An OPE03 alarm will occur if only one of the trim control commands is programmed.
îš„Application Precautions
• Trim Control Increase/Decrease command is enabled when speed reference > 0 and the speed reference
source is one of the analog input (A1 or A2).
• When the (analog frequency reference value - d4-02) < 0, the frequency reference is set to 0.
Parameter
Number
Name
Setting
Range
Factory
Setting
Change
during
Operation
Access
Level
d4-02 Trim control level 0 to 100 10% No A
Set Value Function
1C Trim Control Increase
1D Trim Control Decrease
Frequency Reference
Set Frequency
Reference
+ d4-02
Set Frequency
Reference
- d4-02
HOLD
Trim Control Increase ON OFF ON OFF
Trim Control Decrease OFF ON ON OFF
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