BLD-530S BLDC
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When terminals BK and C0M are disconnected, the motor runs, and when they are connected, the motor quickly brakes to a
stop. The braking time is dependent on the load inertia of the user system. However, because braking has an impact on both
electrical and mechanical systems, natural stopping should be used unless special stopping requirements are needed.
3.5 Speed Signal Output (PG)
The port is an OC output (30V/10mA max) that outputs a speed pulse. You can connect with a resistance (3K ohm~10K ohm)
between signal and input power to get the pulse signal. The port will output a fixed pulse width (50 us) negative pulse string
that is proportional to the frequency of the motor's rotation. The number of output pulses per revolution of the motor is 3 x
N, where N is the number of poles of the motor. For example, a four-pole motor with two pairs of poles
will output six pulses per revolution. When the motor speed is 500 rpm, the output pulse of the PG terminal is 3000.。
3.6 Alarm Output (ALM)
The driver alarm output is an OC output (30V/10mA max). You can connect a resistance (3K ohm ~10K ohm) with the input
power to get the alarm signal. When the alarm is triggered, the port is connected to C0M (low level), and the driver stops
working and enters an alarm state.
3.7 Driver Failure
When over-voltage or over-current occurs inside the driver, the driver will enter protection mode, automatically stop working,
and the motor will stop. The digital display on the driver will show Err-×. To clear the alarm, the enable terminal (EN) needs to
be reset (i.e., disconnected from C0M) or power needs to be disconnected. If this fault occurs, please check the motor wiring.
3.8 Sensorless control mode
STEPPERONLINE drivers can be used for sensorless brushless motors.
But it should be noted that since our brushless driver is mainly used for our brushless motor with sensors, its built-in program
is also used for motors with sensors.
Although our brushless driver can be used for sensorless brushless motors, the program of the driver is not fully compatible
and can only be used in simple scenarios. Our brushless drives are not recommended if the motor needs to be started and
stopped frequently.
When using a brushless driver to drive a sensorless motor, it is necessary to use software to set the sensorless starting torque
according to the parameters of the motor.
