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3. SIGNALS AND WIRING
(b) 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 below.
0
8( 8)
Max. torque
G
enera
ted t
orque
TC applied voltage [V]
Parameter No.30 offset range
999 to 999mV
(2) Torque limit
By setting parameter No. 28 (internal torque limit 1), torque is always limited to the maximum value
during operation. A relationship between limit value and servo motor torque is as in section 3.4.1 (5).
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, 72 to 75 (internal speed limits 1 to
7) 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 below.
When the servo motor speed reaches the speed limit value, torque control may become unstable.
Make the set value more than 100r/min greater than the desired speed limit value.
10
0
10
Rated speed
Speed [r/min]
CCW direction
CW direction
VLA applied voltage [V]
Forward rotation (CCW)
Reverse rotation (CW)
Rated speed
The following table indicates the limit direction according to forward rotation selection (RS1) and
reverse rotation selection (RS2) combination.
(Note) External input signals
Speed limit direction
Analog speed limit (VLA)
RS1
RS2
Polarity
Polarity
Internal speed
commands
1
0
CCW
CW
CCW
0
1
CW
CCW
CW
Note. 0: off
1: on
Generally, make connection as shown below.
SP1
SP2
SG
P15R
VC
LG
SD
2k
2k
Servo amplifier
Japan resistor
RRS10 or equivalent
Summary of Contents for MR-J2S-*A
Page 13: ...WWW NNC IR A 12 MEMO ...
Page 117: ...WWW NNC IR 3 70 3 SIGNALS AND WIRING MEMO ...
Page 185: ...WWW NNC IR 7 12 7 GENERAL GAIN ADJUSTMENT MEMO ...
Page 195: ...WWW NNC IR 8 10 8 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 197: ...WWW NNC IR 9 2 9 INSPECTION MEMO ...
Page 221: ...WWW NNC IR 11 10 11 OUTLINE DIMENSION DRAWINGS MEMO ...
Page 293: ...WWW NNC IR 13 64 13 OPTIONS AND AUXILIARY EQUIPMENT MEMO ...
Page 321: ...WWW NNC IR 14 28 14 COMMUNICATION FUNCTIONS MEMO ...
Page 389: ...WWW NNC IR 15 68 15 ABSOLUTE POSITION DETECTION SYSTEM MEMO ...