Hitachi CONVENTION 14 Instruction Manual page 113

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Add Frequency – The inverter can add or subtract on 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.
Keypad potentiometer
Control terminal
Function F001 setting
ModBus network input
Calculate function output
A145 ADD frequency
Intelligent input
Func.
Code
A145 ADD frequency
ST-PNT
A146 ADD direction select
ADD DIR
"A" Function
Name /
SRW Display
An offset value that is applied to
the output frequency when the
[ADD] terminal is ON.
Range is 0.0 to 400.0 Hz
0000.0Hz
Two options:
00 Plus (adds A145 value to the
01 Minus (subtracts A145 value
PLUS
Frequency source setting
A001
+
+/-
[ADD]
Description
output frequency setting)
from the output frequency
setting)
Output frequency setting
A146
ADD direction select
Run Defaults
Mode -FE -FU
Edit (EU) (USA)
0.0 0.0
00 00
Units
Hz