Festo — EMCS-ST — 2021-03b
Diagnostics and malfunctions
Error
code
Description LED LED displays Event
code
hex
(dec)
C/Q Menu Parameter (IO-
Link)
Error
z General device error or
unlisted error
red light
…
0x1000
Remedy
–
Contact Festo
0x000F
(15)
I
2
t monitoring output stage
error limit
0x1805
Remedy
–
0x0016
(22)
Undervoltage in logic supply
24V
3)
0x1804
Remedy
–
Check logic voltage
supply
0x0017
(23)
Overvoltage in logic supply
24V
0x1803
Remedy
–
Check logic voltage
supply
0x001F
(31)
Undervoltage in DC link 0x1806
Remedy
–
Check the load voltage
supply
0x0026
(38)
Undervoltage in load supply
24V
0x1802
Remedy
–
Check the load voltage
supply
0x0027
(39)
Overvoltage load supply 24
V
0x1801
Remedy
–
Check the load voltage
supply
0x0031
(49)
Device undertemperature 0x4000
Remedy
–
Check ambient conditions
0x0033
(51)
Device overtemperature
Remedy
–
Check ambient conditions
–
Check installation condi-
tions
0x012F
(303)
IO-Link connection inter-
rupted
IO-Link connection inter-
rupted
z
Remedy
–
Check power supply
–
Check IO-Link master
1) Information is not shown in the diagnostic data è IO-Link, device data.
2) with IO-Link operation only
3) This error can only be acknowledged by a restart.
Tab. 42: "Information, warnings and errors" diagnostic messages
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