Hitachi SJ Series User Manual page 422

Chapter 12
12.21.3 Outputting a signal when the
frequency reaches the set value
Ｑ
• I want to detect that the output frequency to the
motor has reached around the set value and make
a notification to the system.
Ａ
• Assign the output terminal functions 004 [FA3] and
006 [FA5] set frequency only output signals to one
of [CC-01] to [CC-07] that corresponds to the
output terminal and output the signals.
• The signals [FA3] and [FA5] can be output
individually.
• The signals [FA3] and [FA5] will be output when the
enabled output frequency reaches around the
setting value.
[CE-10]/[CE-12]
fon
Output
Frequency
ON
[FA3]/[FA5]
OFF
Parameter
Item
Output terminal
function selection
Relay output
terminal function
selection
Relay output
terminal function
selection
Acceleration
reaching frequency
1
Deceleration
reaching frequency
1
Acceleration
reaching frequency
2
Deceleration
reaching frequency
2
fon
foff
Parameter
[CC-01]~[CC-05]
[CC-06]
[CC-07]
[CE-10] 0.00~590.00(Hz)
[CE-11] 0.00~590.00(Hz)
[CE-12] 0.00~590.00(Hz)
[CE-13] 0.00~590.00(Hz)
！
• The operation of [FA3] can be set through [CE-10]
and [CE-11].
• The operation of [FA5] can be set through [CE-12]
and [CE-13].
[CE-11]/[CE-13]
foff
Data
[FA3]: The set frequency only reaching
signal will be output to the output terminal
004 assigned.
006 [FA5]: The set frequency only reaching
signal 2 will be output to the output
terminal assigned.
The frequency to judge that the frequency
has been reached in acceleration and
output the signal [FA3].
The frequency to judge that the frequency
has been reached in deceleration and
output the signal [FA3].
The frequency to judge that the frequency
has been reached in acceleration and
output the signal [FA5].
The frequency to judge that the frequency
has been reached in deceleration and
output the signal [FA5].
12-21-3
Inverter Function
fon: 1% of the maximum frequency
foff: 2% of the maximum frequency
(Operation example)
Maximum frequency: 60 Hz
When [CE-10] = [CE-11] = 50 Hz
• fon=60×0.01=0.6Hz
• foff=60×0.02=1.2Hz
• In acceleration: On at 50 - 0.6 = 49.4 Hz
Off at 50 + 1.2 = 51.2 Hz
• In deceleration: On at 50 + 0.6 = 50.6 Hz
Off at 50 - 1.2 = 48.8 Hz
Description