M542T Microstepping Driver Manual V1.0
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Remark:
a) t1: ENA must be ahead of DIR by at least 5 s. Usually, ENA+ and ENA- are NC (not connected). See “Connector P1
Configurations” for more information.
b) t2: DIR must be ahead of PUL effective edge by 5 s to ensure correct direction;
c) t3: Pulse width not less than 1.5 s;
d) t4: Low level width not less than 1.5 s.
10. Protection Functions
To improve reliability, the driver incorporates some built-in protections features.
Short-voltage and Over-voltage protection
When power supply voltage exceeds 75VDC, over-voltage protection will be activated and Alarm indicator LED will turn on.
Over-current Protection
Protection will be activated when continuous current exceeds the limit.
Short Circuit Protection
Protection will be activated in case of short circuit between motor coils or between motor coil and ground.
11. Frequently Asked Questions
In the event that your driver doesn’t operate properly, the first step is to identify whether the problem is electrical or mechanical in
nature. The next step is to isolate the system component that is causing the problem. As part of this process you may have to
disconnect the individual components that make up your system and verify that they operate independently. It is important to
document each step in the troubleshooting process. You may need this documentation to refer back to at a later date, and these
details will greatly assist our Technical Support staff in determining the problem should you need assistance.
Many of the problems that affect motion control systems can be traced to electrical noise, controller software errors, or mistake in
wiring.
Problem Symptoms and Possible Causes
