KROHNE H250 M8-M9-M10 EN - Manual (Page 26)

4
ELECTRICAL CONNECTIONS
26
H250
www.krohne.com 04/2011 - 4000269302 MA H250-R02 en
If the pointer vane enters the slot, an alarm is triggered. If the pointer vane lies outside the slot
sensor, a wire break also causes the alarm to be triggered.
The 3-wire limit switch does not have any wire break detection.
Current consumption in the position shown:
Switch contact definition
1 MIN contact
2 MAX contact
3 Pointer vane with switching vane
Definition MinMin - MaxMax
1 MIN 2 contact or MAX 1 contact
2 MIN 1 contact or MAX 2 contact
Contact Type Current
MIN 1 NAMUR ≤ 1 mA
MIN 2 NAMUR ≤ 1 mA
MAX 1 NAMUR ≥ 3 mA
MAX 2 NAMUR ≥ 3 mA
MA_H250_R02_en_269302_PRT.book Page 26 Tuesday, April 12, 2011 10:17 AM