Brushless Motor Driver
丨
BLD1500RA
ICAN 2021.03
7 Alarm indication and handling
7.1 Alarm indication
When the signal of Hall sensor is
wrong due to over voltage and over
temperature of motor, ALM port will be
automatically connected to GND port,
ALM port will change to low level, and
the driver will stop working
Red light indication description
Flicker
times
Alarm name
Description of abnormal state
Remark
2
over temperature protection
PCB temperature over 85
℃
detected
If an alarm occurs,
please try to use
shutdown to reset the
alarm. After the
motor stops, the
alarm will be reset
3
over voltage protection
The power supply voltage exceeds 63v
4
lower temperature protection
The power supply voltage is less than 14V
5
Hall alarm
The driver received an incorrect Hall signal
8
Under speed protection
Motor locked rotor, under speed or
abnormal driving circuit
10
Abnormal learning
An exception occurred when the driver
learned the hall line sequence
11-20
Drive damaged
Abnormal internal IO port detected during
power on
21-24
Storage exception
Storage exception detected
Green light indication
Signal
Explanation
Remark
Switch signal
input
F/R
When the input state of the switch signal
changes, the display state of the green
light will change
Green light indicates
priority:
Switch signal input =
analog signal input >
Run > idle
EN
BRK
SW1
SW2
Analog signal
input
RV
When the analog signal input state
changes rapidly, the display state of the
green light will change accordingly
SV
ACC
PCL
Motor status
Run
cycling on for 0.5 seconds and off for 0.5
seconds
Free
On 0.99 seconds and off 0.01 seconds
