Mitsubishi Electric MELSERVO MR-J2-A Product Specifications And Installation Manual page 110

3.WIRING
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.
Max. torque
Fig. 3-9 Analog Torque Command Offset Range
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.
Fig. 3-10 VLA Applied Voltage vs. Speed (RS1=ON)
Table 3-5 RS1/RS2 and Speed Limit Directions
Across
RS1-SG
Short
Open
0
TC applied voltage [V]
Rated speed
(r/min)
-10
0
VLA applied voltage [V]
CW direction
Rated speed
Speed Limit Direction
Across
Analog speed limit (VLA)
RS2-SG
+ polarity
Open CCW
Short CW
3– 25
Parameter No. 30 offset range
-999~+999mV
+8
CCW direction
+10
Forward
rotation
Internal speed
commands 1 to 3
- polarity
CW CCW
CCW CW
Reverse
rotation
3