User`s manual

6-67
6
Timing Chart
The timing chart when using Acceleration/Deceleration Ramp Hold commands is shown in Fig 6.67.
Fig 6.67 Acceleration/Deceleration Ramp Hold
 Raising and Lowering Frequency References Using Contact Signals (UP/
DOWN)
Using the UP and DOWN commands the frequency references can be raised or lowered by switching a pair of
digital inputs.
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). Be sure to allocate two terminals so that the UP and
DOWN commands are used as a pair. Otherwise an OPE03 alarm will be displayed.
The table below shows the possible combinations of the UP and DOWN commands and the corresponding
operation.
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).
Multi-function Digital Inputs (H1-01 to H1-05)
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.
Operation Acceleration Deceleration Hold
Up command ON OFF ON OFF
Down command OFF ON ON OFF
Set Value Function
Control Methods
V/f
V/f
with
PG
Open
Loop
Vector
Closed
Loop
Vector
10 Up command Yes Yes Yes Yes
11 Down command Yes Yes Yes Yes
OFF
OFF ON OFF
OFF OFFON ON
ON
Power supply
Forward/Stop
Acceleration/Deceleration
Ramp Hold
Frequency reference
Output frequency
Hold Hold