General functions
© Siemens AG 2003 All Rights Reserved
8-64 SIMOTION Safety Unit (AP) - Edition 06.2003
• Multi-operator control
Multi-operator control (2-foot) is activated when operating mode 2 is selected
and foot switch 2 is not deactivated. In this case, if foot switch 2 is not
connected, a corresponding message is output and the valves cannot be
controlled (contact monitor).
• Single operator control
Single operator control (foot) is activated when operating mode 2 is selected
and control element 2 is deactivated. In this case, if foot switch 2 is not
connected, a corresponding message is output and the valves cannot be
controlled (connection monitor).
Note
• The connection monitor checks whether, for single operator control, all other
control elements (deactivated control elements) have been removed.
• For multi-operator control, all activated control elements must be connected
(contact monitor).
• If the monitoring function responds, messages are output to notify the user.
8.2 Single operator control via 2 foot switches and operating
error monitor
To implement single operator control via 2 separate foot switches, each foot switch
must be parameterized in a separate operating mode (e.g. foot switch 1 in
operating mode 2 and foot switch 2 in operating mode 3).
A complete stroke can be performed in operating mode 2 (foot switch 1).
Subsequently, the operating mode can be changed and a complete stroke can be
performed in operating mode 3 (foot switch 2). If operating mode 2 is active and
foot switch 2 was activated, a suitable message is output and the machine is
prevented from starting.
The system stops if a control element that was not selected is activated during a
press movement.
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