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3. SIGNALS AND WIRING
(4) Speed limit in torque control mode
(a) Speed limit value and speed
The speed is limited to the limit value set in parameter No.8 (internal speed limit 1) or the value set in
the applied voltage of the analog speed limit (VLA). A relationship between the analog speed limit (VLA)
applied voltage and the servo motor speed is as in section 3.6.3 (3) (a).
Generally, make connection as shown below.
SP1
DOCOM
P15R
VLA
LG
SD
Japan resistor
RRS10 or equivalent
(Note)
2k
2k
Servo amplifier
Note. For the sink I/O interface. For the source I/O interface, refer to section 3.8.3.
(b) Speed selection 1 (SP1) and speed limit value
Use speed selection 1 (SP1) to select between the speed set by the internal speed limit 1 and the
speed set by the analog speed limit (VLA) as indicated in the following table.
(Note) Input device
Speed command value
SP1
0 Analog speed limit (VLA)
1 Internal speed limit 1 (parameter No.PC05)
Note. 0: off
1: on
When the internal speed limit 1 is used to command the speed, the speed does not vary with the
ambient temperature.
(c) Limiting speed (VLC)
As in section 3.6.3 (3) (c)
(5) Torque control in torque control mode
As in section 3.6.3 (1).
(6) Torque limit in torque control mode
As in section 3.6.3 (2).