Troubleshooting
BR/BD 100/250 R BP / RI
Page 150 / 171
Service Manual 08.2007
x
Description
of module
y
Error
number
Brief description/
Error description
Potential causes
6 = Accessories module (A5)
0
Module supply is not
between 12V..14V /
Logic and driver supply
is out of tolerance/ is
missing.
– Voltage drop in DC/DC conver-
ter during operation.
– Voltage of DC/DC converter is
out of tolerance.
Synonymous
Run time
error
Z1/122
1
Power supply is not
between 14V...50V /
Missing load circuit
supply.
– Main relay coil (K1) is open.
– Fuse for module supply line is
burned through.
– Wire break of the +- module sup-
ply.
– Defective downloading electro-
nic unit at drive module.
Z1/121
2
Excess module tempe-
rature /
Temperature in load cir-
cuit stage has exceeded
the approved value.
– All consumers operate at the cur-
rent limit (light, valves...).
– Defective cooling fan.
– Cooling vents are plugged.
User
messages
3
Correctable error in the
parameter memory /
System parameter CRC
is incorrect during the
storage of new parame-
ters for E
2
PROM.
– Problems with the electromagne-
tic compatibility (EMC).
– Premature power failure during
the key switch shutdown.
Z1/101
4
Missing load circuit
voltage at Power On
Voltage of downloading
electronic unit is below
10V.
– Refer to y=1
– Short-circuited load circuit sup-
ply line behind the main contac-
tor.
Z1/121
6.3 Error memory
6.3.6 Significant errors (Accessories module A5)
