5Functions set with parameters
 Movement parameter   5-348
Optimum 
acceleration/
deceleration 
adjustment rate
JADL Real value 8
Set the initial value (value at power ON) of the acceleration/deceleration 
adjustment rate (%) during optimum acceleration/deceleration. It is the 
rate applied to the acceleration/deceleration speed calculated by optimum 
acceleration/deceleration control. In the RV-SD series, high-speed 
operation can be performed by setting this value to a larger value. 
However, if the robot is operated continuously for a certain period of time 
at high speed, overload and overheat errors may occur. Lower the setting 
value if such errors occur.
In the RV-SD series, the initial values have been set so as to prevent 
overload and overheat errors from occurring.
They are applied to both the deceleration and acceleration speeds.
* What is an overload error?
An overload error occurs when the load rate reaches a certain 
value in order to prevent the motor from being damaged by heat 
from high-speed rotation.
* What is an overheat error?
An overheat error occurs when the temperature reaches a certain 
value in order to prevent the position detector from being damaged 
by heat from high-speed rotation.
Note) This function is valid only in the RV-SD series.
RV-3SD/3SDJ/
3SDB/3SDJB series
100,100,100,100,
100,100,100,100 
(%)
RV-6SD/12SD
50,50,50,50,
50,50,50,50(%)
RV-6SDL/12SDL
35,35,35,35,
35,35,35,35(%)
Impact Detection
Note that this 
parameter cannot 
be used together 
with the multi-
mechanism control 
function.
COL Integer 3
Define whether the impact detection function can/cannot be used, 
and whether it is enabled/disabled immediately after power ON.
Element 1: The impact detection function can (1)/cannot (0) be 
used.
Element 2: Enable (1)/disable (0) as the initial state at automatic 
operation.
Element 3: Enable (1)/disable (0)/NOERR mode (2) during jog 
operation
The NOERR mode does not issue an error even if impact is 
detected. It only turns off the servo. Use the NOERR mode if it is 
difficult to operate because of frequently occurred errors when an 
impact is detected. The specification depends on the setting for jog 
operation (element 3) in cases other than program operation 
(including position jump and step feed).
RV-SD series is 
0,0,1
RH-SDH series is 
1,0,1
Detection level COLLVL Integer 8
Set the initial value of the detection level (sensitivity) of each joint 
axis during automatic operation.
Setting range: 1 to 500, unit: % * If a value exceeding the setting 
range is specified, the closest value allowed within the range is 
used instead.
200,200,200,200,
200,200,200,200
Detection level 
during jog 
operation
COLLVLJG Real value 8
Set the detection level (sensitivity) during jog operation (including 
pause status) for each joint axis. Unit: %
Decrease the value to increase the detection level (sensitivity). 
Increase the value if an impact detection error occurs even though 
no impact is detected during jog operation. 
Setting range: 1 to 500, unit: %
* If a value exceeding the setting range is specified, the closest 
value allowed within the range is used instead.
The standard is 
200,200,200,200,20
0,200,200,200, but 
it varies with 
models.
Parameter
Parameter 
name
No. of arrays
No. of characters
Details explanation Factory setting