Specifications

3
3.WIRING
3– 25
c. Analog torque command offset
Using parameter No. 30, the offset voltage of -999 to 999mV can be added to the TC
applied voltage as shown in Fig. 3-9.
2) Torque limit
By setting parameter No. 28 (internal torque limit 1), torque is always limited to the maxi-
mum value during operation. A relationship between limit value and servo motor-generated
torque is as in 1), (1) in this section. Note that the analog torque limit (TLA) is unavailable.
3) Speed limit
a. Speed limit value and speed
The speed is limited to the values set in parameters No. 8 to 10 (internal speed limits 1 to
3) 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 shown
in Fig. 3-10. The limit directions determined by the forward rotation selection (RS1) and
reverse rotation selection (RS2) are indicated in Table 3-5.
Max. torque
0+8
TC applied voltage [V]
Fig. 3-9 Analog Torque Command Offset Range
Parameter No. 30 offset range
-999~+999mV
Generated torque
Speed
Fig. 3-10 VLA Applied Voltage vs. Speed (RS1=ON)
Across
RS1-SG
Table 3-5 RS1/RS2 and Speed Limit Directions
Short
Open
0 +10
-10
(r/min)
Rated speed
CCW direction
VLA applied voltage [V]
Rated speed
CW direction
Across
RS2-SG
Open
Short
Analog speed limit (VLA)
Internal speed
commands 1 to 3
Speed Limit Direction
+ polarity - polarity
CCW
CW
CW
CCW
CCW
CW
Forward
rotation
Reverse
rotation