JVL MIS17 Series User Manual page 156

6.4
Example 1:
Example 2:
156 JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
Gear Mode
Encoder (quadrature) input.
An external encoder feeds the MIS. The I/O type is set to "Pulse in-
put" and "Input type" is set to "Quadrature" in order to decode the
encoder signal. The encoder is connected to the 2 pulse input termi-
nals.
See also How to connect the pulse
The resolution of the external encoder is 2048 cpr.
The MIS motor itself has 409600 cpr. If this application requires that
the MIS motor rotates 1 rev. each time the external encoder has ro-
tated 1 rev., the Input parameter is set to 2048
(external encoder) and the Output parameter is set to 409600.
Now the ratio between the external encoder and the MIS 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 traditional step motor system with separate driver and motor is re-
placed by the integrated MIS motor, meaning that the MIS motor re-
ceives a pulse and direction signal which is a very common 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 2 pulse input terminals. See also
pulse source., page 151.
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 MIS motor to rotate one revolution.
The MIS motor itself has 409600 cpr. If this application requires that
the MIS motor rotates 1 revolution each time 400 pulses are re-
ceived, the Input parameter is set to 400 since the MIS motor inter-
pret every rising edge at the applied pulse signal as one count (step).
The Output parameter is set to 409600 since this is the number of
counts (steps) on one revolution.
Now the MIS motor will move 1 revolution for every 400 pulses that
are applied to the pulse input. Ensure the "Profile data" is set to prop-
er 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(clocks)
per desired MIS motor revolution.
200
400
500
800
1000
1600
2000
409600
(Equal to the MISxxx resolution)
source., page 151.
How to connect the
"Input" "Output"
register register
200 409600
400 409600
500 409600
800 409600
1000 409600
1600 409600
2000 409600
409600 409600