Instruction Manual

5. Diagnostics and error handling
5−24
Festo P.BE−CPX−SYS−EN en 0902e
Error numbers of error class 2
No. Eliminating faultsOperating statusHandheld display
36 [Short circuit CP line] Short circuit in CP string
(24 V
EL/SEN
or 24 V
VAL
)
 Communication on CP
string interrupted
· Check string assignments,
if necessary replace
CP cable
37 [Fault in controlling] Defect with the controller
function (e.g.nominal value
cannot be reached)
Check pressure and actuator
supply
38 [Missing valve] No valve recognised Check valve (function/instal
lation), replace if necessary
39 [Maintenance required] Maintenance necessary See manual for the relevant
module
40 [CO−Life Guard] Fault resulting from
Life Guard monitoring
Check cabling, check CAN bus
load, check Guard Time and
Life Factor and adjust if ne
cessary
41 [CO−Heart Beat] Fault resulting from
Heart Beat monitoring
Check cabling, check CAN bus
load, check Heart Beat Time,
adjust if necessary
42 Reserved
43 [CO−CAN Overrun (Objects
lost)]
Telegrams have been lost Check CAN bus load
44 [CO−Invalid PDO received] PDO received with two few
data bytes
Possibly correct PDO mapping
or increase number of PDO
bytes
45 [CO−CAN WarnLimit
reached]
Some defective CAN tele
grams have been discovered
Check cabling
46 [CO−CAN recovered from
BusOff]
Defective CAN telegrams
have been increasingly
discovered
Check cabling; a CAN partici
pant may be defective
47 [CO−Bus Power lost] No power supply at the CAN
interface
Check power supply at
24VDC Bus and 0 V Bus
48 [Fault in Calibration] Calibration fault (factory
adjustment missing)
Replace module