Add Frequency - Hitachi L200 Series Instruction Manual

3–30
"A" Group: Standard Functions
ADD Frequency – 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 config-
uring 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
Intelligent input
Func.
Code SRW Display
A145 ADD frequency
ST-PNT 0000.0Hz
A146 ADD direction select
ADD DIR

ADD frequency

[ADD]
"A" Function
Name /
An offset value that is applied
to the output frequency when
the [ADD] terminal is ON.
Range is 0.0 to 400.0 Hz
Two options:
00... Plus (adds A145 value to
PLUS
the output frequency setting)
01... Minus (subtracts A145
value from the output
frequency setting)
A001 Frequency source setting
Output frequency setting
+
∑
+/–
Run
Mode
Description
Edit
A146 ADD direction select
Defaults
–FEF –FU
Units
(EU) (USA)
0.0 0.0 Hz
00 00 —