KROHNE H250 M40 EN - Manual (Page 25)

ELECTRICAL CONNECTIONS
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H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
Setting is carried out directly via contact pointers 1 and 2:
• Slide the scale away
• Loosen the locking screw 3 slightly
• Slide the scale back to the latching point
• Set contact pointers 1 and 2 to the desired switching point
After setting has been carried out: Fix the contact pointers with the locking screw 3.
Limit switch connection terminals
1 2-wire limit switch NAMUR
2 3-wire limit switch
3 Limit switch Reed SPST
4 Terminal connection min contact
5 Terminal connection max contact
6 3-wire load
7 NAMUR isolated switching amplifier
8 3-wire power supply
Limit setting
Figure 4-1: Limit switch settings
1 Contact pointer MAX
2 Contact pointer MIN
3 Locking screw
MA_H250_M40_R02_en_640702_PRT.book Page 25 Wednesday, November 28, 2012 12:23 PM