
B–64113EN–1/01
1. AXIS CONTROL
50
The servo interface of the Series 16 features the following:
S Digitally controlled AC servo motor
S Motor feedback with serial pulse coders
(1)Absolute pulse coder with a resolution of 1,000,000 pulses/rev
(2)Absolute pulse coder with a resolution of 65,536 pulses/rev
(3)Incremental pulse coder with a resolution of 10,000 pulses/rev
S Scale feedback with A/B/Z signal interface
Explanation of terms frequently used in CNC
Least command increment
The minimum unit of a command to be given from CNC to the
machine tool
Detection unit
The minimum unit which can detect the machine tool position
Command multiplier (CMR)
A constant to enable the weight of CNC command pulses to meet the
weight of pulses from the detector
Detection multiplier (DMR)
A constant to enable the weight of CNC command pulses to meet the
weight of pulses from the detector
CAUTION
The relations among the least command increment,
detection unit, CMR, and DMR are as specified below.
Least command increment = CMR detection unit
The flexible feed gear function in the digital servo defines
constant DMR using two parameters (Nos. 2084 and 2085)
n and m (DMR = n/m).
Move amount per revolution of motor
DMR number of pulses of detector per revolution
Detection unit =
1.4
SETTINGS RELATED
TO SERVO–
CONTROLLED AXES
1.4.1
Parameters Related to
Servo
General