Hitachi SJ Series User Manual page 420

Chapter 12
12.21 How to compare the output
frequency and output to the terminal
12.21.1 Outputting a signal when the
frequency reaches the target
Ｑ
• I want to detect that the output frequency to the
motor has increased to the command and make a
notification to the system.
Ａ
• Assign the output terminal function 002
[FA1]constant-speed reaching output signal to one
of [CC-01] to [CC-07] that corresponds to the
output terminal and output the signal.
• The signal will be output when the frequency has
reached the enabled frequency command.
Output Frequency
Parameter
Item
Output terminal
function selection
Relay output
terminal function
selection
Relay output
terminal function
selection
Parameter Data
[CC-01]~[CC-05]
[CC-06]
002
[CC-07]
！
• The signal [FA1] may not be output stably when the
frequency command fluctuates because an analog
input command is used. In this case, the symptom
may be alleviated by using the ON/OFF delay
function of the output terminal.
fon: 1% of the maximum frequency
Set frequency
foff: 2% of the maximum frequency
(Operation example)
Maximum frequency: 60 Hz
Set frequency
• fon=60×0.01=0.6Hz
• foff=60×0.02=1.2Hz
• In acceleration: On at 50 - 0.6 =
• In deceleration: On at 50 - 1.2 =
[FA1]:The constant-speed reaching output will be
output as a signal to the output terminal assigned.
12-21-1
Inverter Function
: 50 Hz
49.4 Hz
48.8 Hz
Description