JVL MAC050 User Manual page 25

2.2
Example 1:
Example 2:
JVL Industri Elektronik A/S - User Manual - Integrated Servo Motors MAC050 - 800
Gear Mode
Encoder (quadrature) input.
An external encoder feeds the MAC motor. The I/O type is set to
"Pulse input" and "Input type" is set to "Quadrature" in order to de-
code the encoder signal. The encoder is connected to the A and B
terminals (Multifunction I/O's). See also User I/O, page 70.
The resolution of the external encoder is 500 ppr. The MAC motor
itself has 1024ppr (MAC50-141) or 2000 ppr (MAC800). If this appli-
cation requires that the MAC motor rotates 1 rev. each time the ex-
ternal encoder has rotated 1 rev., the Input parameter is set to 500
(external encoder) and the Output parameter is set to 1024 or 2000.
Now the ratio between the external encoder and the MAC motor
will be 1:1. Ensure the "Profile data" is set to proper values in order
not to limit motor operation unintentionally.
Pulse and direction input.
A step motor system is replaced by a MAC motor, meaning that the
MAC motor receives a pulse and direction signal which is a very com-
mon signal format in step motor applications.
The I/O type is set to "Pulse input" and "Input type" is set to "Pulse-
direction" in order to decode the input signal. The pulse signal is con-
nected to the A terminals (Multifunction I/O) and the direction signal
is connected to the B terminals (Multifunction I/O's).
See also User I/O, page 70.
The MAC motor is replacing a step motor system with 400 steps per
revolution, which means that when the pulse source produce 400
pulses, it expects the MAC motor to rotate one revolution.
The MAC motor itself has 1024ppr (MAC50-141) or 2000ppr
(MAC800). If this application requires that the MAC motor rotates 1
revolution each time 400 pulses are received, the Input parameter is
set to 800 since the MAC motor detects on both the rising and falling
edge of the input signal.
The Output parameter is set to 4096 or 8000 since the number of
counts (edges) on the internal encoder is 4096 or 8000. Now the
MAC motor will move 1 revolution if 400 pulses is applied to the
pulse input. Ensure the "Profile data" is set to proper values in order
not to limit motor operation unintentionally.
The following table can be used as guide for setting up typical gear ra
tios:
Pulse and direction gear ratio setup - "Commonly used ratios"
Applied number of pulses
per MAC motor revolution.
200
400
500
800
1000
2000
4096 (Same as motor resolution)
Input Output
register register
MAC50-141
400 4096
800 4096
1000 4096
1600 4096
2000 4096
4000 4096
8192 4096
MAC800
8000
8000
8000
8000
8000
8000
8000
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