BR/BD 100/250 R BP / RI
Troubleshooting
Page 149 / 171
Service Manual 08.2007
6.3 Error memory
6.3.5 Significant errors (Lifting module A4)
x
Description
of module
y
Error
number
Brief description/
Error description
Potential causes
4,5 = Lifting module (A4)
0
Short circuit lifting
motor (M20, M30, M40)
Hardware has detected
dangerous current
increase.
– Short circuit lifting motor.
– Short circuit in motor cabling.
– Defect in power stage of lifting
motor.
Synonymous
Run time
error
H1/131
H2/131
1
Power supply not
between 14V...50V /
Missing load circuit
supply.
– Main relay coil (K1) open.
– Fuse for module supply line is
burned through.
– Wire break of the +- module
supply.
– Defective downloading elec-
tronic unit at drive module.
H1/121
H2/121
2
Excess module tempe-
rature /
Temperature in load cir-
cuit stage has exceeded
approved value or ambi-
ent temperature is too
high.
– Blocked lifting motors.
– Blocked side brush motors.
– Defective cooling fan.
– Cooling vents are plugged.
– High load currents.
Anwender-
meldungen
3
Short circuit, side brush
motors
Hardware has detected
dangerous current increa-
se.
– Short circuit, lifting motor.
– Short circuit in motor cabling.
– Defect in power stage of side
brush motors.
H1/132
H2/132
4
Missing load circuit
voltage at power-On /
Voltage of download elec-
tronic unit below 10V.
– Refer to y=1.
– Short circuited load circuit
supply lines behind main relay
coil (K1).
H1/121
H2/121
