Setting Frequency References By Pulse Train Input - Omron SYSDRIVE 3G3MV SERIES User Manual

Basic Operation

5-6-5 Setting Frequency References by Pulse Train Input

By setting n004 for frequency reference selection to 5 for enabling the pulse train refer-
ence control terminal, frequency references can be executed by pulse train input
through the PR terminal.
The following description provides information on the n149 parameter (pulse train input
scale), which is used to execute frequency references by pulse train input.
H Setting the Pulse Train Input Scale (n149)
• Set this parameter to the pulse train input scale so that frequency references can be executed by pulse
train input.
• Set the maximum pulse train frequency in 10-Hz increments based on 10 Hz as 1. A proportional rela-
tionship is applied to frequencies less than the maximum frequency.
n149
Pulse Train Input Scale
Setting 100 to 3,300
range
Note 1. For example, to set the maximum frequency reference with pulse train frequency input at 10
kHz, set the parameter to 1,000 from the following formula.
10,000 (Hz)/10 (Hz) = 1,000
Note 2. Input the pulse train into the frequency reference common (FC) and pulse train input (RP)
terminals under the following conditions.
High level: 3.5 to 13.2 V
Low level: 0.8 V max.
The response frequency is within a range from 0 to 33 kHz (30% to 70% ED).
H Setting the Pulse Train Frequency Reference Gain/Bias (n074/n075)
• Set the input characteristics of pulse train input.
• Gain: Set the gain in percentage based on the maximum frequency of the pulse train input scale in
n149 as 100%.
• Bias: Set the bias in percentage for frequency reference input at 0-Hz pulse train input based oh the
maximum frequency as 100%.
n074
Pulse Train Frequency Reference
Gain
Setting 0 to 255
range
Register 0195 Hex
Unit of 1 (10 Hz)
setting
Register 014A Hex
Unit of 1%
setting
Chapter 5
Changes during No
operation
Default setting 2,500
Changes during Yes
operation
Default setting 100
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