Burkert Type 8750 - Manual (Page 49)

49
Error messages
Typ 8750
BUS timeout
is displayed
approx. every
3 seconds I/O connection
timeout. An I/O connection is in the
TIME OUT state.
→
New connection estab-
lishment by master;
ensure that I/O data is
transferred cyclically or, if
COS confirmed, that cor-
responding Acknowledge
messages are sent by the
master.
BUS critical err
is displayed
approx. every
3 seconds Critical bus
error. Other device with the same
address in the network or
BUS OFF due to communi-
cation problems.
→
Change address of the
device and restart device.
→
Error analysis in the
network with a bus
monitor.
Tab. 36: Error messages DeviceNet
16.2. other error messages
display cause remedial action
POS = 0
(bei CMD > 0 %) or
POS = 100 %,
(when CMD < 100 %).
PV = 0
(when SP > 0) or
PV = PV
(when SP > SP ). Sealing function
(
CUTOFF) is uninten-
tionally activated.
Deactivate sealing
function.
Applies only to devices
with binary output:
Binary output does not
switch. Binary output:
• Current > 100 mA
• Short circuit Check binary
output connection.
Tab. 37: Other error messages
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