Omron VARISPEED E7 User Manual page 193

Related Parameters
Param-
eter
Number
Frequency reference upper
d2-01
limit
Frequency reference lower
d2-02
limit
Master speed reference lower
d2-03
limit
Precautions
Setting Precautions
If multi-function input terminals S3 to S7 are set as follows, operation error OPE03 (Invalid multi-function
input selection) will occur:
Only either the UP command or DOWN command has been set.
•
UP/DOWN commands and Acceleration/Deceleration Ramp Hold have been allocated at the same time.
•
Application Precautions
Frequency outputs using UP/DOWN commands are limited by the frequency reference upper and lower
•
limits set in parameters d2-01 to d2-03. Here, the frequency value from analog frequency reference input
A1 becomes the frequency reference lower limit. If using a combination of the frequency reference from
terminal A1 and the frequency reference lower limit set in either parameter d2-02 or d2-03, the larger limit
value will become the frequency reference lower limit.
6
If inputting the run command when using UP/DOWN commands, the output frequency accelerates to the
•
frequency reference lower limits set in d2-02.
When using UP/DOWN commands, multi-step operations are disabled.
•
When d4-01 (Frequency Reference Hold Function Selection) is set to 1, the frequency reference value
•
using the UP/DOWN functions is stored even after the power supply is turned OFF. When the power sup-
ply is turned ON and the run command is input, the motor accelerates to the frequency reference that has
been stored. To reset (i.e., to 0 Hz) the stored frequency reference, turn ON the UP or DOWN command
while the run command is OFF.
54
6-
Name
Sets the frequency reference upper limit as a per-
cent, taking the maximum output frequency to be
100%.
Sets the frequency reference lower limit as a per-
centage of the maximum output frequency.
Sets the master speed frequency reference lower
limit as a percent, taking the maximum output fre-
quency to be 100%.
Setting
Description
Range
0.0 to
110.0
0.0 to
110.0
0.0 to
110.0
Change
Factory during Access
Setting Opera- Level
tion
100.0% No A
0.0% No A
0.0% No A