Wieland samos User Manual page 62

Applications
Robot zone access is monitored by light curtain LC1. The machine zone is further
Application example
A268
protected by a safety door and an emergency stop circuit.
 Robot zone monitoring
with light curtain
switching off the robot power supply. If the robot is not in the safe position when the light
 Emergency stop
 Safety door monitoring
curtain is interrupted, the entire machine and the robot are switched off.
 Category 4
 Stop category 1
switch off. The robot control receives the command to switch off (returning to the safe
position) from Q1.
supply of the robot is switched off safely via K4 and K5 after 1 s.
samos
+ Combination
of flipflop + AND
Type
operation
FUNCTION
Function group
1* MUTING
External circuitry category (EN ISO 13849-1)
the conditional OR-
up to
combination is valid only if
Cross-circuit monitoring
the result of the Reset
function before was =1 Synchronous time monitoring
(see pages 46/47).
Stop category (EN 60204-1)
OFF delay
Retriggering ON
AUTO-RESET after POWER ON
MANUAL RESET after POWER ON
AUTO-RESET
MANUAL RESET
Comment
62
Sensor S3 is OR-linked with LC1 and detects the safe position of the robot.
This enables e.g. equipping through an opening in the processing area without
Opening the safety door or actuating the emergency stop button also result in a safe
K1 and K2 immediately interrupt the power supply to other consumers. The power
Restart is possible after exiting the danger zone and pushing Reset button S4.
module K3 K3A
SA-BM-S1 SA-IN-S1
3.1 2
AB A B
AB A
4
4
X X
– –
0
Q4
0 s
–
X
X
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
SA-IN-S1
7
B
4
–
–