Krom Schroder BCU 46 Series Operating Instructions Manual page 22

• Create a SafetyLink project with BCSoft and
transfer the configuration to the device.
E
? The display blinks and indicates
! Slave configuration check not executed or failed.
• Start and complete the verification of the con-
figuration in the SafetyLink master assigned to
the slave using BCSoft.
E
? The display blinks and indicates
! Incompatible or defective bus module.
• Replace bus module with a functional device (for
K-SafetyLink).
E
? The display blinks and indicates
! The unit is accessed by two or more devices
with the same address.
• Check the configuration in BCSoft.
▷ Each device must have a unique address.
• Remove any device with an incorrect address
configuration from the network or reconfigure it.
• Check the correct assignment of the master and
slave devices using the verification procedure.
E
? The display blinks and indicates
! The unit is accessed by one or more devices
with unknown addresses.
• Check the configuration in BCSoft.
▷ Each slave may only be assigned to one master.
• Remove any device with an incorrect address
configuration from the network or reconfigure it.
• Check the correct assignment of the master and
slave devices using the verification procedure.
E
? The display blinks and indicates
! Incorrect or defective parameter chip card (PCC).
• Only the intended parameter chip card is to be
used.
• Upload the current parameter settings again.
• Replace defective parameter chip card.
5
E 5 .
7
.
E 7
8
E 8 .
9
.
E 9
C C
E CC .
? The display blinks and indicates
! No input signal for the valve proof of closure
switch (POC) during standby.
• Check the wiring.
▷ Mains voltage must be supplied to the BCU (ter-
minals 36, 37 and 38) if the valve is closed and
no voltage is to be applied if the valve is open.
• Check that the proof of closure switch and valve
function perfectly, replace defective valves.
? The display blinks and indicates
! The BCU is receiving no information as to wheth-
er the POC switch contact is still open.
• Check the wiring.
▷ During start-up, mains voltage must be supplied
to the BCU (terminals 36, 37 and 38) if the valve
is closed and no voltage is to be applied if the
valve is open.
• Check that the proof of closure switch and valve
function perfectly, replace defective valves.
? The display blinks and indicates
! The "no flow" state check of the air pressure
switch has failed.
• Check the function of the air pressure switch.
▷ Before the fan is switched on, there must be no
high signal at the input for air monitoring (ter-
minals 36/37) when air monitoring is activated.
? The display blinks and indicates
! The operating check of the air pressure switch
has failed. The air monitor has not switched after
activation of the air supply.
• Check the air monitor wiring.
• Check the air pressure switch setpoint.
• Check the function of the fan or air supply.
? The display blinks and indicates
! The input signal (terminal 37) for the air pressure
switch has dropped out during pre-purge.
• Check the air supply during the purging process.
GB-22
E 1
E 1
E 8
E 8
E 0
E 0
E 1
E 1
E P
E P
.
.
.
.
.