Operator control (hardware)
2.2 Operator controls
SIMOTION D4x5-2
40 Manual, 02/2012
Mode selector switch
The following table contains the possible mode selector switch positions and the associated
LED displays. The mode selector switch positions are explained in the order in which they
are arranged on the SIMOTION D4x5-2.
Table 2- 1 Mode selector switch position
Selector position Meaning LED
0 RUN RUN
1 STOPU SU/PF
2 STOP STOP
3 MRES The MRES operating states are indicated via the STOP LED.
(ON/OFF/flashing, see
SIMOTION D4x5-2
Commissioning and
Hardware Installation Manual)
Other selector positions are not assigned
The following table contains the states of the SIMOTION D4x5-2 that can be set via the
mode selector switch.
Table 2- 2 Mode selector switch settings
Meaning Explanations
RUN SIMOTION D4x5-2 processes the user program and the associated system services:
• Reading process image of inputs
• Execution of the user programs assigned to the execution system.
• Writing process image of outputs
The technology packages are active in this state. They can execute commands from the
user program.
STOPU SIMOTION D4x5-2 is not processing a user program.
• The technology packages are active. Test and commissioning functions can be
executed. The user program is not active.
• The I/O modules are in a secure state. This means, for example, that digital outputs
are "LOW" and analog outputs are de-energized or at zero current.
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