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6 Setting to disable E.OLT during stop-on-contact control
7 Acceleration/deceleration time switching frequency (Pr. 147 )
• When the RT signal (X9 signal) turns ON, the acceleration/deceleration time switches to the second (third) acceleration/
deceleration time even when the output frequency has not reached the Pr. 147 setting. Priority of switching is
X9 signal > RT signal > Pr. 147 setting.
• If the Pr. 147 setting is lower than Pr. 10 DC injection brake operation frequency or Pr. 13 Starting frequency setting, the
acceleration/deceleration time switches to the Pr. 44 (Pr. 45) setting when the output frequency exceeds the Pr. 10 or Pr.
13 setting.
• Switching frequency for each control method
You can set the following parameter so that E.OLT (stall prevention stop) will not be activated during
stop-on-contact control.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
270
Stop-on contact/
load torque high-
speed frequency
control selection
0
0 Normal operation
1 Stop-on-contact control
2 Load torque high speed frequency control
3 Stop-on-contact+load torque high speed frequency control
11 Stop-on-contact control
E.OLT invalid under
stop-on-contact
control
13
Stop-on-contact+load torque high speed
frequency control
When output frequency reaches Pr. 147 Acceleration/deceleration time switching frequency or higher, the
acceleration/deceleration time automatically switches to Pr. 44 Second acceleration/deceleration time and
Pr. 45 Second deceleration time settings.
The RT signal is not necessary for switching the acceleration/deceleration time.
Parameter
Number
Name Initial Value Setting Range Description
147
Acceleration/
deceleration time
switching frequency
9999
0 to 400Hz
Frequency when automatically switching to the
acceleration/deceleration time of Pr. 44 and Pr. 45.
9999 No function
Pr. 147 Setting Acceleration/Deceleration Time Description
9999 (initial value) Pr. 7, Pr. 8
No automatic switching of the
acceleration/deceleration time
0.00Hz Pr. 44, Pr. 45
Second acceleration/deceleration
time from a start
0.01Hz Pr. 147 Set
frequency
Output frequency Pr. 147
: Pr. 7, Pr. 8
Pr. 147 Output frequency
: Pr. 44, Pr. 45
Acceleration/deceleration time
automatic switching
Set frequency Pr. 147 Pr. 7, Pr. 8
No automatic switching, since
output frequency will not reach the
switching frequency
Control Method Switching frequency
V/F control Output frequency
Advanced magnetic flux vector control Output frequency before the slip compensation
Real sensorless vector control Estimated speed converted as frequency
Vector control, encoder feedback control Actual motor speed converted as frequency
Time
Output frequency
(Hz)
Set
frequency
Slope set
by Pr. 7
Slope set
by Pr. 8
Slope set
by Pr. 44
Slope set
by Pr. 44
Pr. 147
setting
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