YASKAWA E-S Series User Manual

5.4 Settings That Must Be Adjusted to the System
5.4.3 Torque Limit Selection
5-26
* Set a percentage of the rated motor torque.
Note: If the setting of Pn402 or Pn403 is too low, the torque may be insufficient for acceleration or deceleration of
the Servomotor.
External Torque Limits
You can limit the torque only when required by the operating conditions of the machine by turn-
ing a signal from a host controller ON and OFF.
 External Torque Limit Reference Signals
The /P-CL (Forward External Torque Limit) and /N-CL (Reverse External Torque Limit) signals
are used as the external torque limit reference signals. The /P-CL signal is used for the forward
torque limit and the /N-CL signal is used for the reverse torque limit.
You must allocate the /P-CL and /N-CL signals to use them. Use PnBB5 = n.XX (/P-CL
(Forward External Torque Limit Input) Signal Allocation) and PnBB6 = n.XX (/N-CL (Reverse
External Torque Limit Input) Signal Allocation) to allocate the /P-CL and /N-CL signals to con-
nector pins.
 Setting the Torque Limits
The parameters that are related to setting the torque limits are given below.
If the setting of Pn404 (Forward External Torque Limit) or Pn405 (Reverse External Torque Limit)
is too low, the torque may be insufficient for acceleration or deceleration of the Servomotor.
* Set a percentage of the rated motor torque.
Pn402
Forward Torque Limit
Setting Range Setting Unit Default Setting When Enabled Classification
0 to 800
1%
*
800 Immediately Setup
Pn403
Reverse Torque Limit
Setting Range Setting Unit Default Setting When Enabled Classification
0 to 800
1%
*
800 Immediately Setup
Type Signal Connector Pin No. Signal Status Meaning
Input /P-CL Must be allocated.
ON (closed) Applies the forward external torque limit.
OFF (open) Cancels the forward external torque limit.
Input /N-CL Must be allocated.
ON (closed) Applies the reverse external torque limit.
OFF (open) Cancels the reverse external torque limit.
Pn404
Forward External Torque Limit
Setting Range Setting Unit Default Setting When Enabled
Classifica-
tion
0 to 800
1%
*
100 Immediately Setup
Pn405
Reverse External Torque Limit
Setting Range Setting Unit Default Setting When Enabled
Classifica-
tion
0 to 800
1%
*
100 Immediately Setup
t
Pn403
Pn402
t
Without Internal Torque Limits
(Output to the maximum torque is possible.)
Maximum torque
Speed
Torque limit
Speed
With Internal Torque Limits

YASKAWA E-S Series Specifications

General

Brand	YASKAWA
Model	E-S Series
Category	Servo Drives
Language	English