2 DressPack and SpotPack
2.7.1 Introduction
102 Rev.E 3HAC 025861-001
Signals for water and air unit
Electrical connections to robot I/O board are made via the Split box on the Water and
Air unit or to connection box at robot base (Figure 69 shows Split box. For
connection box see Circuit diagram.)
8 x M12 connections (4 pins) are available. The number in use depends on option
choices. But at least two are free connection and can be used for customer purposes.
The Split box has six connections prepared for the following units:
• 1. Electric water shut off valve
• 2. Pressure switch
• 3. Flow switch 1
• 4. Flow switch 2
• 5. Proportional valve: Prop. ref. signal & pressure OK signal
• 6. Proportional valve: Power supply
The cable and cable length between the Split box and the Spot Welding cabinet must
be specified (see option 797-1,-2,-3,-4).
Figure 69 Block diagram.
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