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CHAPTER 6 – Commissioning
SMT-BD2/m
3.9
–
P
ARAMETERS ADJUSTMENT TO A LINEAR MOTOR
The
Motor encoder resolution
parameter is calculated as described below:
Motor encoder resolution = 1000 x
The motor
Maximum speed
parameter value in rpm is calculated according to following formula:
Maximum speed (rpm) = 60 x x Maximum motor speed (m/s)
The linear speed value in m/s is calculated according to following formula:
Linear speed (m/s) = x
The motor
Current phase lead
parameter value is calculated by using an equivalent motor torque constant value
according to the following formula:
Torque constant (Nm/A) = Force constant (N/A) x
Pole pitch
N
S
N
S
N
S
Motor magnets
Motor pole pitch (mm)
Encoder signal pitch (µm)
1000
Motor pole pitch (mm)
Motor speed (rpm)
60
Motor pole pitch (mm)
1000
!
1 encoder signal pitch = 4 counting increments
Motor pole pitch (mm)
6000