TPM
STP-M112A/B Quick Start
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position all the way to the end of the stroke. You can also change the logic of these signals using a switch.
The logic of the SD and ORG signals can be changed using a program.
EMG – Emergency stop signal input
When this signal goes active, the affected axis stops rotating immediately. No axis can be operated as
long as this signal is active.
EA, EB and EZ
These terminals are to control the current position using an encoder. 90 degree phase difference signals or
Two-pulse (UP pulse and DOWN pulse) can be input on these terminals. The 90 degree phase difference
signals can be multiplied by 2 or by 4. The EZ input is used for origin return operations. Software can be
used to change the input logic of these terminals. These terminals have built-in pull up resistors to prevent
floating. When these terminals are not used, they can be left open. If you want to improve noise resistance
of the chip, pull them up (5 to 10 K-ohms) or connect them to the VDD.
LTC
This terminal is to latch the specified counter (COUNTER 1 to 3) by inputting a signal. (It can latch more
than one counter). Software can be used to change the input logic of this terminal. This terminal has a
built-in pull up resistor to prevent floating. When this terminal is not used, it can be left open. However, if
you want to improve noise resistance, pull it up (5 to 10 K-ohms) to the VDD or connect it to the VDD.
CMP
The signal output when the comparator condition is satisfied.
Position checking
STP-M112 is a stepping motor driver to control motors with encoder mounted by checking the final
position of the target position. It also provides functional applications for users to get the current position
of the encoder value.
1.2.3. Motor driver
Required power
This board requires 24 VDC±10%
A motor that can be controlled
2-phase stepper motor
Driving method
Current driving system
