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Functional description
Supply voltage (A1/A2)
Start P/B (S43/S44)
Acknowledge P/B (S33/S34)
Safety device 1 (robot)
(S12/S14)
Auxiliary sensor
(S31/S32)
Safety device 2 (operator)
(S22/S24)
Relays K1, K2
Restart, acknowledge,
Restart
error (48)
: switched off
: switched on
n
: n-times flashing (error)
: flashing (0,66 Hz)
: quick flashing (4 Hz)
Notes:
• Safety device 1 (robot) and the auxiliary safety device for the robot position are permanently muted (allowing the robot to
enter the hazardous area):
1. If safety device 2 (operator) is not activated
OR
2. If safety device 2 has been activated, but the operator has pushed the acknowledge push-button, to confirm that he has
left the hazardous area.
• The start push-button must be pushed AND released within 3 s, to energise the safety output contact of the module.
• The acknowledge push-button must be pushed for acknowlegment during less than 3 s.The module de-energises its safety
output contacts, when the push-button is pushed longer than 3 s.
• Pushing the start push-button with one or both of the robot's safety devices activated leads to the energisation of the module
output contacts:
1. If safety device 2 (operator) is not activated
OR
2. If safety device 2 has been activated, but the operator has pushed the acknowledge push-button, to confirm that he has
left the hazardous area.
TEMPORARY MANUAL MUTING (TMM)
An external temporary manual muting may be necessary, in order to evacuate an object (e.g. a palette with goods in a conveyor
application) accidentally remaining in the detection field of a safety device.
The use of a TMM may be necessary in the following cases:
• An object remains in the detection field of a safety device.
• The selected maximum muting time has elapsed.
• Loss of power.
• An application error or a fatal error occurred on the module (e.g. muting lamp failure).
The external TMM system shall be composed by the following components (customer supplied):
• One dual contact key selector switch with two positions or two separate key selector switches with two positions (alternative:
two-hand control).
• Two external safety contactors (with mechanically guided contacts and a normally closed EDM monitoring contact).
• The muting lamp (already connected to terminal 48 of the module).
107111-11-EN FR26 GLO 503 Printed in Germany
t<3 s
t<3 s
2
error
restart
(operator
t<3 s
light
t<3 s
curtain)
5
6
error
error
t<3 s
(auxiliary
(robot
sensor)
light
curtain)
t<3 s
19
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