LICHUAN MC556 Instruction Book Download Page 9

MC556 High Performance Microstepping Driver

MC556 High Performance Microstepping Driver

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10. 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

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Problem Symptoms and Possible Causes

Symptoms

Possible Problems

Motor is not rotating

Microstep resolution setting is wrong DIP switch

current setting is wrong Fault condition exists

Motor rotates in the wrong

direction

Motor phases may be connected in reverse

The Driver in fault

DIP switch current setting is something wrong with
motor Coil control signal is too weak

Erratic motor motion

Control signal is too weak

Control signal is interfered

Wrong motor connection

Something wrong with motor coil
Current setting is too small, losing steps
Current setting is too small

Motor stalls during

acceleration

Motor is undersized for the application
Acceleration is set too high
Power supply voltage too low

Excessive motor and

Driver heating

Inadequate heat sinking / cooling

Automatic current reduction function not being

utilized
Current is set too high

Summary of Contents for MC556

Page 1: ...Instruction book for MC556 High Performance Microstepping Driver 20 50VDC 5 6A...

Page 2: ...al stepping motor controls It brings a unique level of system smoothness providing optimum torque and nulls mid range instability Motor self test and parameter auto setup technology offers optimum res...

Page 3: ...emperature 0 50 Humidity 40 RH 90 RH Operating Temperature 70 Max Vibration 5 9m s2 Max Storage Temperature 20 65 Installation specifications unit mm inch Figure 1 Installation specifications Eliminat...

Page 4: ...se motion direction DIR ENA Enable signal This signal is used for enabling disabling the driver High level NPN control signal PNP and Differential control signals are on the contrary namely Low level...

Page 5: ...ure 4 Typical connection Sequence Chart of Control Signals In order to avoid some fault operations and deviations PUL DIR and ENA should abide by some rules shown as following diagram Figure 5 Sequenc...

Page 6: ...ing performances it is important to select supply voltage and output current properly Generally speaking supply voltage determines the high speed performance of the motor while output current determin...

Page 7: ...resolution and motor operating current as shown below Microstep Resolution Selection Microstep resolution is set by SW5 6 7 8 of the DIP switch as shown in the following table Microstep Steps rev for...

Page 8: ...ining It is prohibited to pull and plug connector P2 while the Driver is powered ON because there ishigh current flowing through motor coils even when motor is at standstill Pulling or pluggingconnect...

Page 9: ...at affect motion control systems can be traced to electrical noise controller software errors or mistake in wiring Problem Symptoms and Possible Causes Symptoms Possible Problems Motor is not rotating...

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