104
Manual – MOVIDRIVE® MDX61B Safety Module Option MOVISAFE® DCS..B
9
Meaning of the status LED
Diagnostics
9 Diagnostics
9.1 Meaning of the status LED
9.1.1 Indication of the operating state
The status LEDs indicate the operating state of the DCS..B option.
DCS..B Status LEDs
1991483403
• LED F: Alarm/error
• LED WD: Watchdog
• LED B: System B
• LED A: System A
DCS21B
F
WD
B
A
Operat-
ing state
LED display Mode Description
1
• LEDs "A" and "B"
flash in sync
(change every 1.2 s)
•LED "WD" off
•LED "F" off
STARTUP Synchronization between both processor sys-
tems and check of the configuration/firmware
data.
2 SEND CONFIG Distribution of the configuration/firmware data
and another check of this data. Range check of
the configuration data.
3 • LEDs "A" and "B"
flash in sync
(change every 0.8 s)
•LED "WD" off
•LED "F" off
STARTUP BUS Only with DCS21B/22B. The option waits until
the safety controller re-integrates the option.
4 • LEDs "A" and "B"
flash in sync
(change every 0.4 s)
•LED "WD" on
•LED "F" off
RUN Watchdog is active, i.e. all outputs can be
switched.
5 • LEDs "A" and "B"
flash in sync
(change every 2 s)
•LED "WD" off
•LED "F" off
STOP In STOP mode, you can load parameter and pro-
gram data to the DCS..B option.
6 • LEDs "A" and "B"
flash in sync
(change every 1.6 s)
•LED "WD" on
• LED "F" flashing
ALARM Functional error caused by an external process.
Both systems run cyclically and process all
requests from the communication interfaces. The
scanning of the external process continues as
well.
7 • LEDs "A" and "B"
flash in sync
(change every 0.4 s)
•LED "WD" off
•LED "F" on
FAILURE Fatal error in MOVISAFE
®
DCS..B program run.
Due to reasons of safety, a cyclical program run
is no longer possible.
INFORMATION
• In operating states 1, 2 and 3, the outputs are automatically switched off by the
firmware. In "RUN" mode (operating state "4"), the outputs are controlled by the im-
plemented MOVISAFE
®
program or the program in the higher-level controller.
• In operating states 6 and 7, all outputs are disabled. When option DCS..B is re-
started, the outputs are enabled in "RUN" operating mode (display "4") and
switched according to the logic used. If the reason for the alarm is still present (e.g.
faulty encoder signals), an alarm is triggered that disables the outputs.
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