Sigma II User’s Manual Chapter 7: Using the Digital Operator
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Adjustment Mode, except that the amount of offset is directly input during the
adjustment. The offset amount can be set in the speed reference or torque reference.
The offset setting range and setting units are as follows:
The speed reference input and torque reference input offset adjustment ranges for the
new Sigma II amplifiers (version # 33
or higher) have finer resolution than the
standard Sigma II amplifiers. The figure below shows the offset adjustment ranges
and resolutions for new Sigma II amplifiers:
Sigma II Amplifier with version #33 or higher
Reference Speed or Reference Torque
Offset Setting
Range
Offset Units
Analog Input Voltage
Offset Setting Range
16Bit – Speed Reference: -9999 to +9999
11Bit – Torque Reference:
Offset Setting Range
Speed Reference: 0.58mV/LSB
Torque Reference: 1.47mV/LSB-128 to +127
Reference Speed or Reference Torque
Offset Setting
Range
Offset Units
Analog Input Voltage
Offset Setting Range
24Bit – Speed Reference: +15000 to -15000
16Bit – Torque Reference:
Offset Setting Range
Speed Reference: 0.05mV/LSB
Torque Reference: 0.5mV/LSB+9999 to -9999
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