Frequency-Related Functions - Hitachi SJ200 Series Instruction Manual

3–20
"A" Group: Standard Functions

Frequency-related Functions

Frequency Limits – Upper and lower
limits can be imposed on the inverter
output frequency. These limits will apply
regardless of the source of the speed refer-
ence. You can configure the lower
frequency limit to be greater than zero as
shown in the graph. The upper limit must
not exceed the rating of the motor or
capability of the machinery. The
maximum frequency setting (A004/A204)
takes precedence over frequency upper
limit (A061/A261).
Func.
Code SRW Display
A061 Frequency upper limit
setting
Lim H
A261 Frequency upper limit
setting, 2nd motor
2Lim H
A062 Frequency lower limit
setting
Lim L
A262 Frequency lower limit
setting, 2nd motor
2Lim L
"A" Function
Name /
Sets a limit on output
frequency less than the
maximum frequency (A004).
0000.0Hz
Range is from frequency lower
limit (A062) to maximum
frequency (A004).
0.0.. setting is disabled
>0.1 setting is enabled
Sets a limit on output
frequency less than the
maximum frequency (A004).
0000.0Hz
Range is from frequency lower
limit (A262) to maximum
frequency (A204).
0.0.. setting is disabled
>0.1 setting is enabled
Sets a limit on output
frequency greater than zero.
Range is start frequency
0000.0Hz
(B082) to frequency upper
limit (A061).
0.0.. setting is disabled
>0.1 setting is enabled
Sets a limit on output
frequency greater than zero.
Range is start frequency
0000.0Hz
(B082) to frequency upper
limit (A261).
0.0.. setting is disabled
>0.1 setting is enabled
Output
frequency
Upper
A061
limit
Lower
A062
limit
0
Run
Mode
Description
Edit
Settable
range
Frequency command
Defaults
–FEF –FU
Units
(EU) (USA)
0.0 0.0 Hz
0.0 0.0 Hz
0.0 0.0 Hz
0.0 0.0 Hz