3R110 Plus User Manual
szruitech.com
12
8. Common faults and troubleshooting
Phenomenon
Possible situations
Solutions
Motor does
not work
Power indicator is off
Check the power supply circuit for normal
power supply
The motor rotor is locked but the
motor does not work
Pulse signal is weak; increase the signal
current to 7-16mA
The speed is too slow
Select the right micro-stepping
Driver is protected
Solve the alarm and re-power
Enable signal problem
Pull up or disconnect the enable signal
Command pulse is incorrect
Check whether the upper computer has
pulse output
The steering
of motor is
wrong
The rotary direction of motor is
reverse
Adjust the DIP SW5
The motor cable is disconnected Check the connection
The motor has only one direction Pulse mode error or DIR port damaged
Alarm
indicator is on
The motor connection is wrong
Check the motor connection
The voltage is too high or too low Check the power supply
The position
or speed is
wrong
The signal is disturbed
Eliminate interference for reliable
grounding
The command input is incorrect
Check the upper computer instructions to
ensure the output is correct
The setting of Pulse per
revolution is wrong
Check the DIP switch status and correctly
connect the switches
Encoder signal is abnormal
Replace the motor and contact the
manufacturer
The Driver
terminal
burned up
Short circuit between terminals
Check power polarity or external short
circuit
Internal resistance between
terminals is too large
Check whether there is any solder ball
due to excessive addition of solder on the
wire connections
9. Guarantee clause
9.1 Warranty period: 12 months
We provide quality assurance for one year from the date of delivery and free maintenance service
for our products during the warranty period.
9.2 Exclude the following:
■ Improper connection, such as the polarity of the power supply is reversed and insert/pull the
motor connection when the power supply is connected.
■ Beyond electrical and environmental requirements.
■ Change the internal device without permission.
