Summa Series Servodrive Product Manual
Application Functions
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved.
7-18
/PCL
/NCL
H Level
L Level
L Level
Torque
Speed
Pn402
Pn403
0
Torque
Speed
Pn404
Pn403
0
7.9.3
Limiting torque with /CLT output signal
This following describes the /CLT signal, which indicates the status of limiting the Motor output torque.
Type
Signal
Pin
Signal Status Meaning
Output /CLT
Allocated by
Pn511
ON (closed)
The Motor output torque is being limited.
OFF (open)
The Motor output torque is not being
limited.
7.10
Soft Start
The soft start function converts the stepwise speed reference inside the Drive to a consistent rate of
acceleration and deceleration.
The soft start form can be selected by parameter Pn310:
[0] Ramp;
[1] S-Curve;
[2] Primary filtering;
[3] Secondary filtering
The soft start function enables smooth speed control when inputting a stepwise speed reference or when
selecting internally set speeds. Set both Pn306 and Pn307 to “0” for normal speed control. Set these
parameters as follows:
Pn305: The time interval from the time the Motor starts until the Motor maximum speed is reached.
Pn306: The time interval from the time the Motor is operating at the Motor maximum speed until it
stops.
Pn306
Before Soft Start
Motor max. speed
After Soft Start
Parameter Name
Range
Unit
Default When Enabled
Pn306
Soft Start Acceleration Time
0 to 10000
ms
0
Immediately
Pn307
Soft Start Deceleration Time
0 to 10000
ms
0
Immediately
