SMRI2
6 - Electrical connections
WARNING
Electrical connection has to be carried
out by qualified personnel only, with
power supply disconnected and
mechanical parts compulsorily in stop.
Function
M12 connector
M8 cable
0VDC
1
Black
+VDC
1
2
Red
A
3
Yellow
/A
4
Blue
B
5
Green
/B
6
Orange
0
2
7
White
/0
2
8
Grey
Shielding
Case
Shield
1 See order code:
EXAMPLE
SMRI2-
L
-
1
-… +VDC = +5VDC ± 5%
SMRI2-
YC
-
2
-… +VDC = +10VDC
+30VDC
2 Only available with -R- order code
NOTE
All sensors can provide inverted signals.
A = A signal;
/A = inverted A signal (or
complementary signal).
Magnetic sensors can provide AB0, /AB0 output
signals. We advise the inverted signals always be
connected if the receiving device will accept them.
Otherwise each output should be insulated
singularly.
WARNING
Connecting /A, /B, or /0 each other, to
+VDC or 0VDC may cause permanent
damage to the sensor.
6.1 M12 8-pin connector specifications
M12 8-pin connector
male, frontal side
A coding
6.2 M8 cable specifications
Type
: LIKA HI-FLEX M8
Wires
: 6 x 0.14 mm
2
+ 2 x 0.22 mm
2
Shield
: Tinned copper braid
External Ø : Ø 5.3 ÷ 5.6 mm
Impedance :
148
/Km (6),
90
/Km (2)
Min. bend radius: Ø x 7.5
The total length of the cable connecting the sensor
and the receiving device should not exceed 50 m (55
Yd). Should greater distances to be reached please
contact Lika Electronic Technical Dept.
Do not bend the cable excessively; the min.
bending
radius is:
Ø
x 7.5
at a 10 mm min. distance from
the sensor head.
6.3 GND connections
Minimize noise by connecting the shield (or the
connector housing) and the sensor to ground. Make
sure that ground is not affected by noise.
6.4 Diagnostic LEDs
LED
Description
E Error
(blinking
red)
Error 1: mounting tolerances between
the sensor and the ring are not met;
Error 2: rotary speed of the ring too
high (frequency error).
R Reference
(green)
Ring with reference (-R- order code):
reference mark detected, zero signal.
It is equivalent to the high logic level
of the 0 output signal.
Ring without reference (-N- order
code): the electric power is supplied
to the device.
MAN SMRI2 I_E 1.3.odt
12
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