Festo CAMC-G-S3 Manual page 50

2 Product description of safety module CAMC-G-S3
Permission button
The permission button is usually used during a setting operation.
Example: During the setting operation, machine travel is allowed when the safety door is open through
the use of the SLS function as soon as the permission button is actuated. In so doing, the permission
button temporarily cancels a safety function, which is briefly replaced by another safety function. The
function of the permission button is implemented through corresponding parameterisation of the logic
(request, terminate request) of the safety function.
The following logic functions are permanently allocated to specific inputs:
Two-handed control device (DIN42A/B and DIN43A/B)
The two-handed control device is used in applications in which the operator must release the move­
ment with both hands as soon as he has left the danger zone. The two-handed control device receives
input from two safe input pairs. Here too, a safety function, e.g. SS1, can be overwritten by another
function, e.g. SLS. The function of the two-handed control device (monitoring of the two inputs) is im­
plemented in the safety module as a fixed logic function. The safety functions are switched by parame­
terising the logic (request, terminate request) of the safety functions.
Mode selector switch (DIN45, DIN46, DIN47)
This is used to select the operating mode. The following operating modes are supported:
– normal operation / operating mode 1
– setting operation / operating mode 2
– special operation / operating mode 3
Note: The operating modes are named according to C standards for the corresponding machines.
The function of the mode selector switch is implemented in the safety module as a fixed logic function.
The safety functions are switched by parameterising the logic (request, terminate request) of the safety
functions.
Restart
The Restart input can be used to reset those safety functions, which are not required at the time the
input is actuated. DIN49 is intended for the restart, but any other input can be parameterised as the
restart input.
Example:
– SS1 was requested via Emergency Stop, SS2 via the door contact switch.
– Now, Emergency Stop is cancelled and the door remains open.
=> When the Restart button is actuated, the system remains idling with the SS2 safety function active
and can restart immediately when the safety door is closed.
50 Festo – GDCP-CAMC-G-S3-EN – 1406NH – English