5-13
5-2 Common Function Setting
COMMON PARAMETER SETTING
- SV Series User’s Manual -
Relationship between input status of "Electric gear switching 1 (GEAR1)"/"Electric gear switching 2 (GEAR2)" and the
enabled electric gear numerator multi-factor is described below.
• When the command pulse output is not finished, if the electric gear multi-factor is switched, then position
offset may occur due to electric gear switching.
• Electric gear multi-factor switching operation is peformed inside the servo amplifier, therefore, the
command pulse and encoder pulse from higher-level equipment will not be influenced.
• Be sure to set within the range of 0.001≦ electric gear ratio (POS_02/POS_03) x electric gear
numerator multi-factor (POS_13 - 15). The "*Parameter setting error 0" alarm (040) will occur when it
exceeds the setting range.
• This function will be disabled when it is combined with the following functions.
• Pattern operation
• Gain search PRO (without higher-level command)
• Estimation of ratio of inertia moment
Inposition Signal (INPOS) 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 a "Inposition (INPOS)" signal will be output.
■ INPOS range
The SV series can set a INPOS range according to position deviation range of the "Inposition INPOS" output. The
INPOS range can be through a parameter.
• The seting unit is "CMD_PLS", which is a command pulse unit set through the electric gear (POS_02/
POS_03). The electric gear numerator multi-factor will be disabled
• If the set value is too large, and the position deviation during low speed operation becomes smaller, then
it will always be in the inposition signal output status. Be sure to set a proper range.
■ INPOS/NEAR unit
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.
Control input
Enabled electric gear
GEAR1 GEAR2
OFF OFF Electric gear (POS_02/POS_03)
ON OFF
Electric gear x E-Gear numerator multi-factor 1
OFF ON
Electric gear x E-Gear numerator multi-factor 2
ON ON
Electric gear x E-Gear numerator multi-factor 3
Parameter
type
Category
Level
Parameter
name
Setting range Setting unit Default
Enable
timing
POS_04 Position Basic INPOS range 0 to 1073741824
CMD_PLS/
INC_PLS
7 After changing
Parameter
type
Category
Level
Parameter
name
Setting range
Setting
unit
Default
Enable
timing
POS_12 Position Special
*INPOS, NEAR
unit
0: CMD_PLS
1: INC_PLS
-0
After power is
ON again
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