5-14
5-2 Common Function Setting
- SV Series User’s Manual -
COMMON PARAMETER SETTING
■ INPOS output timing
The "Inposition (INPOS)" output will always be ON when the position deviation is always small according to size of the
INPOS range. During
command pulse input, if the "Inposition (INPOS)" output is OFF, then "Inposition (INPOS)" output timing will
be changed. Timing can be set through a parameter.
Positioning Approximation (NEAR) Signal (Position Control Mode)
If absolute value of the difference between the pulse command from the higher-level equipment and movement of the servo
motor (position deviation pulse) is smaller than the set value, then a "Positioning approximation (NEAR)" signal will be output.
■ NEAR range
The SV series cam set a NEAR range according to the position deviation range of "Positioning approximation
(NEAR)" output. NEAR range can be set through a parameter.
■ INPOS/NEAR unit
The number of pulses set in the INPOS/NEAR range can be set to a command pulse unit of the higher-level
equipment or an encoder pulse (feedback pulse) unit of the servo motor. Pulse type can be set through a parameter.
"INPOS Signal Setting", Page 7-8
When using it in combination with KV-ML16V, be sure to set POS_11 to "7" under normal conditions.
Deviation Excessive Alarm/Warning Setting (Position Control Mode)
If absolute value of the difference between the pulse command from the higher-level equipment and movement of the
servo motor (position deviation pulse) is smaller than the set value, then an alarm will occur and the "ALARM" will be
ON; or a warning will occur, and the "WARN" output will be ON.
If operation of the motor is different from that of the command, then you can detect error and stop motor by setting a
proper deviation excessive waring level. The calculation formula for the position deviation (difference between
position command value and actual position) is as follows.
■ Deviation excessive alarm
The deviation excessive alarm level should be set 1.2- 2 times the value calculated through the above formula.
Parameter
type
Category
Level
Parameter
name
Setting range
Setting
Unit
Default
Enable
timing
POS_08 Position Extend
*INPOS timing
0:
PosDeviation =< INPOS range
1: (PosDev =< INPOS) & cmd
after flt=0
2:
(PosDev =< INPOS) & cmd=0
-0
After power is
ON again
Parameter
type
Category
Level
Parameter
name
Setting range Setting unit Default
Enable
timing
POS_11
Position
Extend
NEAR range 1 to 1073741824
CMD_PLS/
INC_PLS
7
After
changing
Position deviation =
Motor speed [min
-1
]
60
Encoder resolution (1048576)
Position control gain (TUN_04)
x
Parameter
type
Cateogry
Level Parameter name Setting range
Setting
unit
Default
Enable
timing
ALM_07 Alarm Extend
Deviation excessive
alarm level
1 to 1073741823 CMD_PLS 5242880
After
changing
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