Operating Instructions
Modular Safety Control System MSC
64
(Translation of the original operating instructions) 2121331-04-04/19
8.4.12. Module AH-FO4SO8 (Figure 38)
MEANING
LED
RECTIFICATION MEASURE
RUN
GREEN
IN FAIL
RED
EXT FAIL
RED
SEL 0/1
ORANGE
OSSD1/4
RED/GREEN
CLEAR1/4
YELLOW
STATUS 1/8
YELLOW
Internal error OFF
Flashes 2 or 3
times
OFF
Indicates the phys-
ical address of the
module
Red OFF Ì Send module to EUCHNER for repair.
Compatibility error OFF Flashes 5 times OFF Flashes 5 times Flashes 5 times Flashes 5 times
Ì Firmware version not compatible
with MSC-CB. Send to EUCHNER for
firmware upgrade.
OSSD output error OFF Flashes 4 times OFF
Flashes 4 times
(only the LED
corresponding to
the output in the
ERROR mode)
OFF OFF
Ì If the problem persists, send module
to EUCHNER for repair.
Error during communi-
cation with base unit
OFF Flashes 5 times OFF OFF OFF OFF
Ì Restart system.
Ì If the problem persists, send module
to EUCHNER for repair.
Error in another
extension module or
MSC-CB
OFF ON OFF OFF OFF OFF
Ì Restart system.
Ì Check which module is in the ERROR
mode.
Extension module of
the same type with
the same address
detected
OFF Flashes 5 times
Flashes 5
times
OFF OFF OFF
Ì Change address of the module (see
section NODE_SEL)
STATUS output over-
load or short circuit
OFF OFF ON
OUTPUT
state
CLEAR Flashing Ì Check status output connections
OSSD overload or
load connected to
24 VDC
OFF OFF ON
Flashing
(only the LED
corresponding to
the output in the
ERROR mode)
OFF
OUTPUT
state
Ì Check OSSD output connections
No voltage on OS-
SD3-OSSD4
OFF OFF ON
OSSD3/OSSD4
ashing
OSSD3/OSSD4
ashing
OUTPUT
state
Ì Connect pin 14 to 24 VDC
Node detection error OFF Flashes 3 times OFF Flashes 3 times OFF OFF OFF Ì Send module to EUCHNER for repair
Table 57: Troubleshooting AH-FO4SO8
Figure 38:
AH-FO4SO8