KROHNE H250 M8-M9-M10 EN - Manual (Page 25)

ELECTRICAL CONNECTIONS
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H250
www.krohne.com 04/2011 - 4000269302 MA H250-R02 en
Limit setting
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 Terminal connection min contact
4 Terminal connection max contact
5 3-wire load
6 NAMUR isolated switching amplifier
7 3-wire power supply
Figure 4-4: Limit switch settings
1 Contact pointer MAX
2 Contact pointer MIN
3 Locking screw
MA_H250_R02_en_269302_PRT.book Page 25 Tuesday, April 12, 2011 10:17 AM