Further topics
•
•
•
"Electrical installation", page 60
•
•
"Mounting the system plug", page 45
•
•
"Alignment of the twin stick", page 74
•
"Check during commissioning and modifications", page 77
8.3
When it is switched on
Overview
NOTE
Both twin sticks must always be switched on at the same time. When one of the twin
sticks is taken out of operation, the second twin stick must be switched off briefly
before switching on again.
After the safety light curtain is switched on, it goes through the power-up cycle. The
LEDs indicate the device status during the power-up cycle.
The LEDs have the following meanings:
Table 12: LEDs during power-up cycle
LED
Meaning
O
All LEDs
LED test. All LEDs light up briefly.
O
Red
OSSD off, system is being activated
Ö
White
No optical communication to another twin stick
1)
Ö
White
O
Blue 1
Communication to the second twin stick is
being established
O
Blue 1 to 5
Alignment quality display (goes out when suffi‐
cient alignment quality exists for 2 min)
O
Green
OSSD off, system active, protective field free
O
Orange RES
RES configured
O
Orange EDM
EDM configured
Other display
Device error
Further topics
•
"Indications when switching on", page 83
•
•
"Configuring external device monitoring (EDM)", page 65
•
8.4
Alignment of the twin stick
Overview
Once mounting and electrical installation are complete, the twin sticks must be aligned
with each other.
1)
During the initial commissioning of a twin stick, the LED flashes immediately to signal the first synchronization between the twin sticks.
For all other power-up processes, the LED only flashes if the previous system partner does not answer within 20 s. In this case, communi‐
cation can also be established with a replacement twin stick.
8
COMMISSIONING
74
O P E R A T I N G I N S T R U C T I O N S | miniTwin4
8012624/10OM/2018-08-09 | SICK
Subject to change without notice