Auto Reset - Panasonic ST4 Instruction Manual

Functions
ST4-A□ receives the light beam.

3.2.2 Auto Reset

DANGER!
If the auto-reset function is used and the control output (OSSD
!
1/2) is stopped, ensure that nothing else, such as a safety relay
unit, executes an auto-restart of the system (EN 60204-1).
For automatic reset, keep the following aspects in mind:
• The control output (OSSD 1/2) turns on automatically when ST4-A□ receives the light
beam.
Reception
status
Control output
(OSSD 1 / 2)
•
The back check circuit (KA, KB) is constructed between X1 and X3. When the back
check circuit (KA, KB) is not needed, short-circuit between X1 and X3.
When the back check circuit is required
X1
When the back check circuit is not required
X1
52
SEN TRONIC
AG
Produkte, Support und Service
Beam
received
Beam
interrupted
25ms or less
ON
100ms or more
OFF
KA KB
Rugghölzli 2
CH - 5453 Busslingen
Panasonic ST4 Instruction Manual
90ms or less
X3
X3
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Fax +41 (0)56 222 10 12
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