Reer MZERO - LED INDICATORS (Normal Operation)

STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
8541403 • 19/07/2021 • Rev.1 21
English
LED INDICATORS (Normal Operation)
Figure 11 - Signals
MEANING
LED
RUN
IN FAIL
EXT FAIL
COM
IN1÷16
OSSD1÷4
STATUS1÷4
GREEN
RED
RED
ORANGE
YELLOW
RED/GREEN
YELLOW
Power on - initial TEST
ON
ON
ON
ON
ON
Red
ON
MZD requesting connection: MZERO
internal configuration not present
OFF
OFF
OFF
Flashes slowly
OFF
Red
OFF
MZD connected - MZERO stopped
OFF
OFF
OFF
ON
OFF
Red
OFF
Table 5 - Opening Screen
MEANING
LED
RUN
IN FAIL
EXT FAIL
COM
IN1÷16
OSSD1÷4
STATUS1÷4
GREEN
RED
RED
ORANGE
YELLOW
RED/GREEN/YELLOW
YELLOW
NORMAL OPERATION
ON
OFF
OFF
operation OK
▪ ON = MZERO
connected to PC
▪ OFF = otherwise
INPUT
condition
▪ RED with output
OFF
▪ GREEN with output
ON
▪ YELLOW waiting for
restart
▪ BLINKING YELLOW
with inconsistent
feedback
(when required)
OUTPUT
condition
EXTERNAL FAULT
DETECTED
ON
OFF
ON
incorrect
external
connection
detected
▪ ON = MZERO
connected to PC
OFF = otherwise
only the
number of the
INPUT with the
incorrect
connection
flashes
Table 6 - Dynamic Screen