7 Configuring example
11.03
7.6 SI I/Os using fail-safe modules connected to PROFIBUS DP
© Siemens AG 2003 All Rights Reserved
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SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Significance and use of the individual signals:
PM-E F (channel 0) : Valve unit 3
Signal status channel 0 = "0"
Valve in the inhibited/quiescent position
Signal status channel 0 = "1"
Valve open
PM-E F (channel 1) : Not used
PM-E F (channel 2) :
Shutting down the supply voltage for subsequent
DO module / external not used
Signal status channel 2 = "0"
The power supply voltage for the subsequent DO module is
disconnected via the two potential rails P1/P2.
Signal status channel 2 = "1"
The power supply voltage for the subsequent DO module is switched-
in via the two potential rails P1/P2.
7.6.3
Individual application functions
The <drive on> button is only used to acknowledge the internal Emergency
Stop state. The button has no function in subsequent operation. The table of
functions below shows the logical inter-relationships between the individual
safety-relevant signals and functions. The description starts with the
assumption that the Emergency Stop state has been acknowledged.
Table 7-1
Application functions
Sensor
State
Axes, spindles/
external devices
Monitor function/
switching status
Emergency Stop
Not actuated
Axes/spindles
SG3 (> maximum speed)
Protective door
Closed
Valve unit 1
Open position
Agreement button Not applicable
Valve unit 2
Open position
Valve unit 3
Open position
Case 1
Supply voltage DO
Connected
Emergency Stop
Not actuated
Axes/spindles
SBH
Protective door Open
Valve unit 1
Inhibit-quiescent position
Agreement button Not pressed
Valve unit 2
Inhibit-quiescent position
Valve unit 3
Inhibit-quiescent position
Case 2
Supply voltage DO
Disconnected
Emergency Stop
Not actuated
Axes/spindles
SG1
Protective door
Open
Valve unit 1
Open position
Agreement button Pressed
Valve unit 2
Inhibit-quiescent position
Valve unit 3
Open position
Case 3
Supply voltage DO
Disconnected
Emergency Stop
Actuated
Axes/spindles
STOP C -> SBH
Protective door
Open
Valve unit 1
Inhibit-quiescent position
Agreement button Pressed
Valve unit 2
Inhibit-quiescent position
Valve unit 3
Inhibit-quiescent position
Case 4
Supply voltage DO
Disconnected
Emergency Stop
Actuated
Axes/spindles
STOP D -> SBH
Protective door
Closed
Valve unit 1
Inhibit-quiescent position
Agreement button Pressed
Valve unit 2
Inhibit-quiescent position
Valve unit 3
Inhibit-quiescent position
Case 5
Supply voltage DO
Disconnected