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YASKAWA SGDV series User Manual

YASKAWA SGDV series
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4 Operation
4.4.2 External Torque Limit
4-32
4.4.2 External Torque Limit
Use this function to limit torque by inputting a signal from the host controller at specific times during machine
operation. For example, some pressure must continually be applied (but not enough to damage the workpiece)
when the robot is holding a workpiece or when a device is stopping on contact.
(1) Input Signals
Use the following input signals to limit a torque by external torque limit.
Note 1. When using external torque limit, make sure that there are no other signals allocated to the same terminals as /P-
CL and /N-CL. When multiple signals are allocated to the same terminal, the signals are handled with OR logic,
which affects the ON/OFF state of the other signals. Refer to 3.4.1 Input Signal Allocations.
2. Use parameter Pn50B.2 and Pn50B.3 to allocate the /P-CL signal and the /N-CL signal for use. For details, refer
to 3.4.1 Input Signal Allocations.
(2) Related Parameters
Set the following parameters for external torque limit.
The setting unit is a percentage of the rated torque.
Note: If the settings of Pn402, Pn403, Pn404, and Pn405 are too low, the torque may be insufficient for acceleration or
deceleration of the servomotor.
Type
Signal
Name
Connector
Pin Number
Setting Meaning Limit value
Input /P-CL Must be allocated
ON
(closed)
Forward external torque limit ON
The smaller value of these set-
tings: Pn402 or Pn404
OFF
(open)
Forward external torque limit
OFF
Pn402
Input /N-CL Must be allocated
ON
(closed)
Reverse external torque limit ON
The smaller value of these set-
tings: Pn403 or Pn405
OFF
(open)
Reverse external torque limit
OFF
Pn403
Pn402
Forward Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 800 Immediately
Setup
Pn403
Reverse Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 800 Immediately
Setup
Pn404
Forward External Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 100 Immediately
Setup
Pn405
Reverse External Torque Limit
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 800 1% 100 Immediately
Setup
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Torque

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YASKAWA SGDV series Specifications

General IconGeneral
SeriesSGDV
CommunicationMECHATROLINK-II, MECHATROLINK-III, EtherCAT
Control ModesPosition, Speed, Torque
Protection FeaturesOvercurrent, Overvoltage, Undervoltage, Encoder error
Ambient Temperature0°C to 55°C
Cooling MethodNatural cooling or forced air cooling
Voltage200V, 400V
WeightVaries depending on model (e.g., 0.6 kg to 10 kg)

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