turck BL67 - Diagnostic and Status Messages

Digital input modules
D300529 0115 - BL67 I/O modules5-14
5.3.3 Diagnostic and status messages
LED status displays
Diagnostic data
This module has the following diagnostic data
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
:
Diagnostics
Table 5-12:
LED status dis-
plays
LED Display Meaning Remedy
D Red Module bus communication
failure
C
heck if more than two ad-joining
electronics modules have been
pulled.
This concerns modules located
between this module and the gate-
way.
Red No field voltage
(LED V
I
at Power Feeding mod-
ule is "off")
Check the power supply for the
inputs (V
sens
).
Red,
flashing, 0.5 Hz
Diagnosis pending -
OFF No error messages –
0 to 3 Green Status of channel x = "1" –
OFF Status of channel x = "0" -
Red
flashing, 2 Hz
LED 0 to 3:
Overload sensor supply channel
x
Check the sensor supply.
Red LED 0 and 1:
open-circuit monitoring
Check the wires for open-circuits.
0----Overcurr.
sensor
supply D
Ov
ercurr.
sensor
supply C
Overcurr.
sensor
supply B
Overcurr.
sensor
supply A
1----- - Wire
break
ch 1 and 3
Wire
break
ch 0 and 1
Table 5-13:
Diagnostics
Overcurrent sensor supply ch x Short-circuit or overload at
sensor supply A, B, C or D (see Table 5-19)
Wire break ch x Groupwise wire break detection:
Group A (channel 0 and 2)
Group B (channel 1 and 3)