Alignment Procedure - Datasensing SH4 ADVANCED Product Reference Manual

Alignment Procedure

The ALIGNMENT function can be activated at power up keeping active the ALIGN input
for at least 0.5 seconds, as shown in the following timing diagram. When a good state of
alignment is reached a power OFF and a power ON operation carry back the ESPE in nor-
mal operation.
LIGHT CURTAIN POWER SUPPLY
ALIGN SIGNAL
ALIGNMENT STATE
In Alignment Mode ESPE is always in Safe State and the OSSDs are kept OFF.
The state of alignment is estimated from RX unit by reading the received signal level of
each beam. First and last beam received level gets some more weight.
Before switching to normal operation please ensure to have aligned the light curtain
with the best achievable signal, see "User interface indication with light curtain in align-
ment mode" on page 50.
NOTE: In order to use this function, the ESPE must be configured via SH4
Designer App (a pin must be configured for alignment signal). See "I/O
Configuration" on page 28.
0.5 s
PRODUCT REFERENCE GUIDE
ALIGNMENT
ON
OFF
ACTIVE
INACTIVE
ON
OFF
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