128
Frequency Reference by Pulse Train Input
Frequency reference can be set by pulse train input from the control cir-
cuit terminals.
• Input pulse specifications
• Low-level voltage: 0.8 V or less
• High-level voltage: 3.5 to 32 V
• H duty: 30 % to 70 %
• Pulse frequency: 0 to 33 kHz
• Frequency reference method
Frequency reference is a value obtained by multiplying the ratio of
the maximum input pulse frequency and actual input pulse fre-
quency by the maximum output frequency.
Constant
No.
Name Unit Setting
Range
Factory
Setting
n003 Run Command Selection - 0 to 3 0
n004 Frequency Reference
Selection
- 0 to 9 1
n149 Pulse Train Input Scaling 1=10
Hz
100 to 3300
(33 kHz)
2500
(25 kHz)
Reference
frequency
Input pulse frequency
Maximum output
frequency (n011)
Maximum pulse train frequency (n149) × 10
=
×
IM
S1
S2
RP
FC
SC
Run/stop and FWD/REV run can be
selected by a switch connected
to the multi-function input.
[Set S1 and S2 to FWD run/stop
(n050 = 1) or REV run/stop (n051 = 2).]
Set the frequency by a pulse train
input signal [0 % to 100 %
(maximum frequency)/0 to 33 kHz]
from the control circuit terminal.
FWD Run/Stop
REV Run/Stop
Pulse
Reference
Device
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