Krom Schroder BCU 46 Series Operating Instructions Manual page 21

• Check the wiring and ensure that the device and
the inputs are supplied with the same phase.
E
? The display blinks and indicates
! No PCC.
• Insert compatible PCC.
! Contact problems on the power module.
• Remedy contact problems.
! Power module is defective.
• Replace power module.
• If the measures described above do not help, the
unit has probably suffered a hardware defect –
remove the unit and return it to the manufacturer
for inspection.
E
? The display blinks and indicates
! No "Minimum capacity reached" signal from
actuator.
• Check the butterfly valve and the function of the
limit switches in the actuator.
• Check the wiring.
• Check the actuator.
• If the fault cannot be remedied by doing this,
remove the unit and return it to the manufacturer
for inspection.
E
? The display blinks and indicates
! No "Maximum capacity reached" signal from
actuator.
• Check the butterfly valve and the function of the
limit switches in the actuator.
• Check the wiring.
• Check the actuator.
• If the fault cannot be remedied by doing this,
remove the unit and return it to the manufacturer
for inspection.
E
? The display blinks and indicates
! No "Ignition capacity reached" signal from actua-
tor.
• Check the butterfly valve and the function of the
limit switches in the actuator.
• Check the wiring.
• Check the actuator.
9 7
E 97 .
A
E A .
A
E A .
A
E A .
• If the fault cannot be remedied by doing this,
remove the unit and return it to the manufacturer
for inspection.
? The display blinks and indicates
! Internal communication with bus module has
suffered a fault.
• Connected control elements must be equipped
with protective circuits in accordance with the
manufacturer's instructions.
▷ This prevents high voltage peaks which can
cause malfunctioning of the BCU.
• Use interference-suppressed terminal boots
(1 kΩ).
• If the fault cannot be remedied by doing this,
remove the unit and return it to the manufacturer
for inspection.
! Bus module is defective.
• Replace the bus module.
? The display blinks and indicates
! Faulty connection to master.
• Check the connection.
• Check whether the slave is configured in the
master.
? The display blinks and indicates
! Incorrect K-SafetyLink address.
• Check that the set address matches the address
configured for K-SafetyLink.
• Only use addresses in the range of 0x001
to 0xFEF.
? The display blinks and indicates
! Plausibility check failed, K-SafetyLink configura-
tion invalid.
• Check SafetyLink configuration in BCSoft and
transfer to the device again.
? The display blinks and indicates
! K-SafetyLink awaiting configuration.
GB-21
E E
E E
E 0
E 0
E 1
E 1
E 2
E 2
E 4
E 4
.
.
.
.
.