Electrical connections – KROHNE MAC 100 EN User Manual
Page 32

4
ELECTRICAL CONNECTIONS
32
OPTISENS MAC 100
www.krohne.com
04/2011 - MA OPTISENS MAC 100 R01 en
Required cable properties
• Maximum wire cross section: 1.5 mm
2
/ 0.06 square inch
• Minimum stripping length for wires: 8 mm / 0.31"
Note the following procedure, remove the cover and connect the cables accordingly:
• Start to remove the internal cover of the relay outputs (1) by pressing it down (2).
• Pull the cover forward (3), then upward out of the clip and remove it (2 and 4).
• Remove the cover of the earth terminal by pulling it upward 5.
i
You see the 10-pin terminal block which is fitted with a connected bridge.
Interference suppression (A = AC, B = DC)
1 Resistor, R = 47...390 Ω, see table before
2 Capacitor, C = 10...220 nF, see table before (e.g. Siemens MKC B 81 921)
3 Relay coil
4 Free-wheeling diode
5 Relay coil
Step 1: removing the cover
CAUTION!
The screw under the cover (5) is not to be used as a cable connection. Do not loosen or remove
the cover or the screw!
.book Page 32 Friday, April 1, 2011 4:59 PM