turck BL20 Series - 6.3.2 Diagnostic and status messages

Power Distribution Modules
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6.3.2 Diagnostic and status messages
The diagnostic functions monitor the supply voltages (system and field supply) supplied by the user
for undervoltage. The diagnostic functions indicate errors via the ”DIA” LED and transmit the corre-
sponding diagnostic information to the gateway.
LED status displays
Diagnostics
This module has the following diagnostic data per channel:
 ”No field voltage”
Monitoring of the external power supply to the field
Maximum operating current I
EI
10 A
Voltage anomalies According to EN 61 000-4-11/ EN 61 131-2
LED Display Meaning Remedy
DIA Red,
flashing
0.5 Hz
Diagnostics pending
Check the wiring to the field power supply. Check if the
voltage for the field supply is wihtin the permissible
range.
Red, flash-
ing, 0.5 Hz
and LED
U
L
”Off”
voltage at the terminal <
84 VAC 5 VAC
Red Module bus communi-
cation failure
Check if more than two ad-joining electronics modules
have been pulled. Check the supply of the module bus.
Off No error messages or
diagnostics
–
U
L
Green Field power supply via
external power supply
unit OK
–
Off Field power supply via
external power supply
unit faulty
Check the wiring to the field power supply.
Check the external power supply unit.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
- - - - - No field voltage - -
Technical data