Sigma II User’s Manual
Chapter 7: Using the Digital Operator
7-30
7.2.4
Manual Adjustment of the Speed and Torque Reference Offset
Manual speed/torque reference offset adjustment is useful in the following situa-
tions:
If a position loop is formed with a host controller and the error zeroed-out when the
motor was stopped in servo lock (zero reference).
•
To deliberately set the offset to some value.
This mode can also be used to check the data set in the automatic reference offset
adjustment mode.
In principle, this mode operates in the same way as the automatic reference offset
adjustment mode, except that the amount of offset is directly input during the adjust-
ment. The offset amount can be set in the speed reference or torque reference.
The offset setting range and setting units are as follows:
Manual Adjustment of Speed Reference Offset
Follow the procedure below to manually adjust the speed reference offset.
Using the Hand-Held Digital Operator
1. Press the DSPL/SET key to select the auxiliary function mode.
2. Select the parameter Fn00A.
Press the Up Arrow
or Down Arrow key to select the digit.
Press the Up Arrow
or Down Arrow key to change the value.
Reference Speed or Reference Torque
Offset Setting
Range
Offset Units
Analog Input Voltage
Offset Setting Range
Speed Reference: -0123 to +1023
Torque Reference:
Offset Setting Range
Speed Reference: 0.46mV/LSB
Torque Reference: 1.47mV/LSB
-128 to +127
