Hitachi WJ200-001S Instruction Manual page 248

Add Frequency Enable
The inverter can add or subtract an offset value to the output frequency setting which
is specified by
Frequency is a value you can store in parameter . The ADD Frequency is summed
with or subtracted from the output frequency setting only when the [ADD] terminal is
ON. Function
input as the [ADD] terminal, your application can selectively apply the fixed value in
to offset (positively or negatively) the inverter output frequency in real time.

Keypad potentiometer
Control terminal

Function setting
ModBus network input
Calculate function output
ADD frequency

Intelligent input
Option Terminal
Code Symbol

ADD ADD Frequency
Enable
~
Valid for inputs:
, ,
Required settings
Notes:


may specify any source; the Add Frequency
will be added to or subtracted from that value to
yield output frequency value.
(will work with any of the five possible sources). The ADD

selects whether to add or subtract. By configuring an intelligent


Function Name State
ON
OFF

Frequency source setting
+
Σ
+/-
[ADD]

Applies the Add Frequency value to the output
frequency
Does not apply the Add frequency. The output
frequency retains its normal value
Example (default input configuration shown—see
page 3-85):
7 6 5
See I/O specs on page 4–6.
Output frequency setting

ADD direction select
Description
ADD
4 3 2 1 L PLC P24
441