BLUELIGHT BL6-U - Page 53

BL6-U Parallel Integrated Controller Quick Commissioning User Manual
52
Error
Code
Disp
lay
Definition
Possible Causes
Possible Solution
DF35
162
While safety protecting,
motor has crept too long
When the system is in the
state of security protection, it
is detected that the encoder
feedback displacement is too
large.
1. Encoder feedback signal anomaly;
2. Brake force may be not enough or
already open.
3. The setting of control parameter is
not reasonable.
Check the brake, encoder and
parameter setting related to safety
protection
DF36
163
Lack of phase protection for
3-phase input power
During the operation of the
system, the input phase is
detected lack, and the shell
driving power is abnormal.
1. While running, system find lack of
phase.
2. Check if there’s IF error in Fault
report. If yes, solve error
according to IF error.
3. Bad contact between main board
and power board.
1. Check 3-phase input power;
2. Check if there’s short circuit of
output 3-phase;
3. Check cable between main
board and power board;
4. While using one phase, set
FD-21. BIT0=1 to ignore lack of
phase error.
DF37
164
Three-phase output line short
circuit
Short circuit between 3-phase
output or short to earth or to
N line.
1. There is short circuit among
3-phase output or output to earth
or output to N line;
2. Imbalance adapt between motor
and inverter capacity.
1. Check 3-phase output and
output to earth and output to
N line;
2. Check if inverter capacity
adapts to motor.
Note: Set FD-21. BIT3=1 can ignore
     
doing that. Because it has risk to
burn module.
DF38
165
Imbalance of 3-phase output
System find the summation of
3-phase current is not zero
and last for certain time.
1. The output current feedback way
of 3-phase output is seriously
abnormal;
2. One of 3-phase may short to earth
or N line.
1. Check if there is broken circuit
or short circuit with N(Neutral)
of 3-phase output;
2. Feedback channel of current
sensor.
DF39
166
Output voltage is saturated
During the operation of the
system, the integrated
controller output voltage is
detected to be saturated.
1. Low input voltage;
2. Rated motor speed setting is not
same with actual speed;
3. For geared motor, rated slip is too
low or over load.
1. Check DC bus voltage;
2. Check if rated RPM is same
with nameplate or if bus
voltage has been dropped
down through monitoring
running status;
3. Check rated slip for geared
motor;
4. Check balance factor.