XLT Hitachi X200 - Manual (Page 179)

Add Frequency Enable
The inverter can add or subtract an offset value to the output frequency setting which is
specified by A001 (will work with any of the five possible sources). The ADD Frequency
is a value you can store in parameter A145. The ADD Frequency is summed with or
subtracted from the output frequency setting only when the [ADD] terminal is ON.
Function A146 selects whether to add or subtract. By configuring an intelligent input as
the [ADD] terminal, your application can selectively apply the fixed value in A145 to
offset (positively or negatively) the inverter output frequency in real time.
Option
Code
Terminal
Symbol
Function Name State Description
ON Applies the A145 Add Frequency value to the
output frequency 50 ADD ADD Frequency
Enable
OFF Does not apply the Add frequency. The output
frequency retains its normal value
Valid for inputs: C001~C005
Required settings A001, A145, A146
Notes:
x A001 may specify any source; the Add
Frequency will be added to or subtracted from
that value to yield output frequency value.
Example (default input configuration shown—see
page 3–49 ):
See I/O specs on page 4–6.
Keypad potentiometer
Control terminal
Function F001 setting
ModBus network input
Calculate function output
Ȉ
+
A001 Frequency source setting
Output frequency setting
A145 ADD frequency
A146
ADD direction select
+/-
Intelligent input
[ADD]
5 4 3 2 1 L PCS P24
ADD
4 30
Operations and
Monitori
ng
4 −30
Operations and
Monitoring