Raising And Lowering Frequency References Using Digital Input Signals (Up/Down) - Omron VARISPEED E7 User Manual

Time Chart
The time chart when using Acceleration/Deceleration Ramp Hold commands is given below.
Power supply
Forward/Stop
Acceleration/Deceleration
Ramp Hold
Frequency reference
Output frequency
Raising and Lowering Frequency References Using Digital Input Signals
(UP/DOWN)
The UP and DOWN commands raise and lower Inverter frequency references by turning ON and OFF a multi-
function digital input terminal S3 to S7.
To use this function, set two of the parameters H1-01 to H1-05 (digital input terminal S3 to S7 function selec-
tion) to 10 (UP command) and 11 (DOWN command).
The table below shows the possible combinations of the UP and DOWN command and the corresponding
operation.
Operation
UP command
DOWN command
The change of the output frequency depends on the acceleration and deceleration times. Be sure to set b1-02
(Run command selection) to 1 (Control circuit terminal).
Related Parameters
Parameter
Number
d2-01 Frequency reference upper limit
d2-02 Frequency reference lower limit
d2-03 Master speed reference lower limit
d4-01 Frequency reference hold function selection
OFF ON
OFF ON OFF
Hold
Fig 6.43 Acceleration/Deceleration Ramp Hold
Acceleration Deceleration
ON OFF
OFF ON
Name
Input Terminal Functions
OFF
OFF ON
ON
Hold
Hold
ON OFF
ON OFF
Setting Factory
Range Setting
Operation
0.0 to
100.0%
110.0
0.0 to
0.0%
110.0
0.0 to
0.0%
110.0
0 or 1 0
Change
Access
during
Level
No A
No A
No A
No A
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