Q2BYG808MD
Driver
User’s
Manual
-39-
Failure
Possible
cause
Solution
Enable
signal
is
low
Disconnect
EN
signal
Current
setting
is
too
small
Reset
current
The
number
of
subdivision
is
too
small
Reset
subdivision
No
pulse
signal
input
Adjust
the
pulse
signal
Position
is
inaccurate
Subdivision
is
incorrect
Reset
subdivision
Motor
load
is
too
large
Replace
the
motor
or
increase
current
Motor
wire
poor
contact
Check
wiring
and
connect
properly
Motor
rotation
is
wrong
Direction
signal
connection
error
Swap
two
wires
of
the
same
phase
winding
Motor
wire
is
disconnected
Check
and
connect
properly
Motor
acceleration
stall
Acceleration
is
too
large
Reduce
acceleration
Motor
torque
is
too
small
Match
the
appropriate
motor
Maximum
speed
is
too
large
Reduce
the
maximum
speed
Serial
connection
exception
Serial
cable
disconnected
Check
connection
Communication
port
setting
error
Check
COM
port
number
assigned
by
PC
Baud
rate
is
set
incorrectly
Check
the
settings
of
baud
rate
DIP
switch