Omron SYSDRIVE 3G3MV

5-25
5-6-5 Setting Frequency References by Pulse Train
Input
By setting n004 for frequency reference selection to 5 for enabling the
pulse train reference control terminal, frequency references can be
executed by pulse train input through the PR terminal.
The following description provides information on the n149 parameter
(pulsetraininputscale),which is usedtoexecutefrequency referencesby
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 relationship is applied to frequencies less than the maximum frequency.
n149 Pulse Train Input Scale Register 0195
Hex
Changes during
operation
No
Setting
range
100 to 3,300 Unit of
setting
1 (10 Hz) Default setting 2,500
Note 1. For example, to set the maximum frequency reference with pulse train fre-
quency input at 10 kHz, set the parameter to 1000 from the following formula.
10,000 (Hz)/10 (Hz) = 1,000
Note 2. Inputthepulsetrainintothefrequency referencecommon (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).
ED = Operating Duty Cycle.
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:Setthebias in percentage for frequency referenceinputat 0-Hzpulsetraininput
based oh the maximum frequency as 100%.
Basic Operation Chapter 5