ACD GRUPPE M2Smart HMI10 Wired Projektierungshandbuch Seite 58

23.6 Enabling switch
23.6.1 Technical Data of the enabling switch
Contact Type
Electrical Life
Mechanical Life
B10d
Switching Frequency
Standards
Table 27: Technical data for enabling switch
®
The M2Smart HMI10 Wired is normally held by the handle with the left hand. This makes it possible to
operate the enabling switch with the fingers.
This enabling switch is designed as a panic-proof switch, i.e. if the enabling switch is pressed all the way
down or released in an emergency situation, the enabling signal is interrupted and the previously enabled
action is stopped.
Operation of the three-stage enabling switch in accordance with (IEC 60947-5-8) is described below:
The enabling switch operates on three stages based on three positions:
Position 1: Idle position

Position 2: Working position

Position 3: Panic position

Release key:
 Button falls back to position 1 without activating the enabling signal.
The working contacts of the enabling switch are actuated in the center position (position 2). A clearly
noticeable pressure point is implemented in the design for this. In the event of a panic action/injury, the
operator would either squeeze firmly (position 3) or release the handle (position 1). In both situations, the
working contacts of the enabling switch are deactivated and the system is stopped. Position 2 "Working
position" must therefore be actively actuated and held. The main use is for setting up or maintaining
machines or robots within hazardous areas.
M2SmartSE HMI10 Wired_Bedienungs-Projektierungshandbuch_
Operating and Project Engineering Manual_V1.01_de_en
Technical Data
3-stage enabling switch
100,000 switching cycles
Stage 1—2—1: 1,000,000 switching cycles
Stage 1—2—3—1: 100,000 switching cycles
100,000
1,200 switching cycles/hour
EN 60947-5-1, EN 60947-5-8, EN 60204-1
Not actuated: No enable signal
2nd stage actuated: Enable signal active
3rd stage actuated: Enable signal interrupted
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