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7. Power Supply Selection
The Microstep Driver can match Large and small size stepping motors (from Nema size 17 to Nema
size 34). To achieve good driving performances, it is important to sele
current properly. Supply voltage determines the high speed performance of the motor, while output
current determines the output torque of the driven motor (particularly at lower speed). Higher supply
voltage will allow higher motor speed to be achieved, at the price of more noise and heating. If the
motion speed requirement is low, it
improve reliability.
Regulated or Unregulated Power Supply
Both regulated and unregulated power supplies can be used to supply the driver. However,
unregulated power supplies are preferred due to their ability to withstand current surge. If regulated
power supplies (such as most switching supplies.) are indeed used, it is importan
current output rating to avoid problems like current clamp. On the other hand, if unregulated supply is
used, one may use a power supply of lower current rating than that of motor (typically 50%
motor current). The reason is that the driver draws current from the power supply capacitor of the
unregulated supply only during the ON duration, but not during the OFF duration. Therefore, the
average current withdrawn from power supply is consid
Multiple Drivers
It is recommended to have multiple drivers to share one power supply to reduce cost, if the
supply has enough capacity. To avoid cross interference,
supply input pins of the drivers. (Instead, please connect them to power supply separately
8. Troubleshooting
1. The status on light’s indication
RUN: green, normal work light.
ERROR: red, failure light, the motor with phase short
protection.
NOTE:
TO CHECK IF DRIVE IS OK/NOT OK, CONNECT ONLY SUPPLY (AC /DC) VOLTAGE AND
GROUND TO THE MICROSTEP DRIVE AND CHECK THE LED INDICATOR IF IT SHOWS
GREEN THEN DRIVE IS OK AND IF THE LED INDICATOR SHOWS RED THEN DRIVE IS
NOT OK. THIS TEST SHOULD
CARRIED AND MOTOR IS NOT RUNNING
Website:
E-mail id:[email protected]
BHOLANATH PRECISION ENGINEERING PVT. LTD.
8-lead motor parallel connections
The Microstep Driver can match Large and small size stepping motors (from Nema size 17 to Nema
). To achieve good driving performances, it is important to select supply voltage and output
current properly. Supply voltage determines the high speed performance of the motor, while output
current determines the output torque of the driven motor (particularly at lower speed). Higher supply
otor speed to be achieved, at the price of more noise and heating. If the
motion speed requirement is low, it
’
s better to use lower supply voltage to decrease noise, heating and
Regulated or Unregulated Power Supply
d unregulated power supplies can be used to supply the driver. However,
unregulated power supplies are preferred due to their ability to withstand current surge. If regulated
power supplies (such as most switching supplies.) are indeed used, it is importan
current output rating to avoid problems like current clamp. On the other hand, if unregulated supply is
used, one may use a power supply of lower current rating than that of motor (typically 50%
motor current). The reason is that the driver draws current from the power supply capacitor of the
unregulated supply only during the ON duration, but not during the OFF duration. Therefore, the
average current withdrawn from power supply is considerably less than motor current
It is recommended to have multiple drivers to share one power supply to reduce cost, if the
supply has enough capacity. To avoid cross interference,
DO NOT
daisy-chain the power
vers. (Instead, please connect them to power supply separately
1. The status on light’s indication
RUN: green, normal work light.
: red, failure light, the motor with phase short-circuit, overvoltage and undervoltage
TO CHECK IF DRIVE IS OK/NOT OK, CONNECT ONLY SUPPLY (AC /DC) VOLTAGE AND
GROUND TO THE MICROSTEP DRIVE AND CHECK THE LED INDICATOR IF IT SHOWS
GREEN THEN DRIVE IS OK AND IF THE LED INDICATOR SHOWS RED THEN DRIVE IS
THIS TEST SHOULD BE DONE WHEN THE BELOW TROUBLE SHOOTING
CARRIED AND MOTOR IS NOT RUNNING.
Website:-www.bholanath.in
BHOLANATH PRECISION ENGINEERING PVT. LTD.
The Microstep Driver can match Large and small size stepping motors (from Nema size 17 to Nema
ct supply voltage and output
current properly. Supply voltage determines the high speed performance of the motor, while output
current determines the output torque of the driven motor (particularly at lower speed). Higher supply
otor speed to be achieved, at the price of more noise and heating. If the
s better to use lower supply voltage to decrease noise, heating and
d unregulated power supplies can be used to supply the driver. However,
unregulated power supplies are preferred due to their ability to withstand current surge. If regulated
power supplies (such as most switching supplies.) are indeed used, it is important to have large
current output rating to avoid problems like current clamp. On the other hand, if unregulated supply is
used, one may use a power supply of lower current rating than that of motor (typically 50%
～
～
～
～
70% of
motor current). The reason is that the driver draws current from the power supply capacitor of the
unregulated supply only during the ON duration, but not during the OFF duration. Therefore, the
erably less than motor current
It is recommended to have multiple drivers to share one power supply to reduce cost, if the
chain the power
vers. (Instead, please connect them to power supply separately).
circuit, overvoltage and undervoltage
TO CHECK IF DRIVE IS OK/NOT OK, CONNECT ONLY SUPPLY (AC /DC) VOLTAGE AND
GROUND TO THE MICROSTEP DRIVE AND CHECK THE LED INDICATOR IF IT SHOWS
GREEN THEN DRIVE IS OK AND IF THE LED INDICATOR SHOWS RED THEN DRIVE IS
WHEN THE BELOW TROUBLE SHOOTING IS
