Keyence SV Series - Analog Torque Input (T-REF)

7-19
7-5 Torque Control
PARAMETER SETTING AND OPERATION OF PULSE/ANALOG INPUT
7
- SV Series User’s Manual -
Analog Torque Input (T-REF)
■ Gain setting for T-REF input
To set up with the following paramers.

Max. permissible input voltage is DC±12V.
■ Offset adjustment for T-REF input
Due to small voltage bias of higher-level equipment or external circuit, servo motor may operate at a very small
speed, even if "T-REF" is 0V. Such small bias is called offset which can be adjusted.
The adjustment can be done manually or automatically.
● Auto adjustment
Command voltage reference vlaue can be adjusted automatically by inputting a reference analog voltage.
Parameter
type
Category Level Parameter name
Setting
range
Setting unit Default
Enable
timing
TRQ_01 Torque Basic T-REF input gain 10 to 100 0.1V/RAT 30
After
changing
Factory setting
Input voltage (V)
Command torque (%)
300
200
100
- 100
- 12 - 8 - 4
38
0
12
- 200
- 300
To set up slope TRQ_01.
When TRQ_01 is 30 ··········· Rated rotation speed when input voltage is 3V.
(Solid line in diagram)
When TRQ_01 is 10 ··········· Rated rotation speed when input voltage is 1V.
(Dot dash line in diagram)
Note
Command
voltage
Offset
Torque
command
Command
voltage
Auto-adjust offset
inside servo amplifier
Auto-compensate
offset
Torque
command