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380
Torque Limits
Section 10-4
W-Series Servo Parameter
Area
Torque Limit Parameters
Axis Operating Output Memory Areas (Operating Commands)
a = Beginning word of Axis Operating Output Areas specified in Common
Para (Axis No.
−
1)
×
25
Axis Operating Input Memory Areas (Monitoring)
b = Beginning word of Axis Operating Input Areas specified in Common
Para (Axis No.
−
1)
×
25
When using W-series Servo Drives, the set values for Servo Parameters
For-
ward Rotation External Current Limit
(Pn404) and
Reverse Rotation External
Current Limit
(Pn405) can be overwritten at any time to change the torque
limit value while the torque limit function is enabled.
When using G-series Servo Drives, the set values for Servo Parameters
No.1
Torque Limit
(Pn05E) and
No.2 Torque Limit
(Pn05F) can be overwritten at
any time to change the torque limit value.
During ABSOLUTE MOVEMENT, RELATIVE MOVEMENT (except for INTER-
RUPT FEEDING), SPEED CONTROL, and TORQUE CONTROL execution,
the Current Limit Designation Bit setting can be changed while the axis is
active by turning ON the command's start bit again.
For ORIGIN SEARCH, ORIGIN RETURN, and JOG, torque limits can be
specified only at the start of operation.
Note
When executing movement commands sequentially, make sure that the
movement command bit remains OFF for a minimum of either the PLC cycle
time × 2 or the MECHATROLINK communications cycle × 2, whichever is
longer. If the time that the movement command bit is OFF is too short, the
Type
Parameter
No.
Parameter name
Unit
Setting
range
Data
length
Default
setting
---
Pn404
Forward rotation external current limit
%
0 to 800
2
100
---
Pn405
Reverse rotation external current limit
%
0 to 800
2
100
Name
Word
Bits
Contents
ABSOLUTE MOVEMENT a
03
0
→
1: Starts absolute movement.
RELATIVE MOVEMENT
04
0
→
1: Starts relative movement.
ORIGIN SEARCH
06
0
→
1: Starts origin search.
ORIGIN RETURN
07
0
→
1: Starts origin return.
JOG
09
0
→
1: Starts jogging.
1
→
0: Stops jogging
Direction designation
10
0: Forward rotation direction
1: Reverse rotation direction
DECELERATION STOP
15
0
→
1: Starts deceleration stop.
SPEED CONTROL
a+1
02
0
→
1: Starts speed control.
TORQUE CONTROL
03
0
→
1: Starts torque control.
EMERGENCY STOP
15
0
→
1: Starts emergency stop.
Forward rotation current
limit designation
a+16
14
1: Use forward torque limit.
Reverse rotation current
limit designation
15
1: Use reverse torque limit.
Name
Word
Bits
Contents
Torque Limit Status Flag
b+1
09
1: Torque limit in progress
Summary of Contents for CJ1W-NC271 - 12-2009
Page 2: ......
Page 4: ...iv ...
Page 6: ...vi ...
Page 22: ...xxii ...
Page 58: ...30 Starting Operation Section 2 2 ...
Page 244: ...216 Axis Operating Input Memory Areas Section 4 8 ...
Page 264: ...236 Transferring Servo Parameters Section 5 3 ...
Page 396: ...368 Linear Interpolation Section 9 7 ...
Page 648: ...620 List of Error Codes Appendix D ...
Page 674: ...646 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Page 684: ...656 Index ...
Page 686: ...658 Revision History ...