Service Manual
rev 5.0 with software Ind1V022
3.3.2 Encoder
Standard encoder has 24 pulses per revolution. It is also allowed to use 600, 1000, 1024, 2000 or 2048 ppr
encoders, but then there has to be both channels connected.
Order code for 24 ppr encoder is NM701NR28.
Encoder connection examples are shown below. All signal wires shall be included inside a single shielded
cable. Power supply to the encoder may also be included in the same cable.
Standard connection
Encoder 24 ppr.
:55
+24V
:51
EA+
:54
EB-
IN
V
E
R
T
ER
blue
+V
0V
red
:56
0V
:53
EB+
:52
EA-
G
yellow
A+
terminal box
D2L
X1
Standard connection
Encoder 600 ppr. or more
:55
+24V
:51
EA+
:54
EB-
IN
V
E
R
T
E
R
black
blue
+V
A-
0V
red
:56
0V
:53
EB+
:52
EA-
G
yellow
A+
green
B+
white
B-
terminal box
D2L
X1
In standard encoders, there are also "zero outputs (Z+, Z-)", which should be left disconnected. If the encoder
does not have negative channels (A- and B-), EA- and EB- must be connected to 0V at motor terminal box
(alternative connection).
In order to avoid fault situations, the cable between the encoder and D2L must be
- as far as possible from the cables of motor and braking resistor (minimum distance >20cm)
- a shielded and twisted cable
- grounded (the shield) at both ends, 360
°
grounding on D2L terminal
- the shield should be grounded always when going through terminals
Some problems may occur when using shielded flat cable or in situations where the encoder cable has been
placed too close (< 5cm) to the motor cables and braking resistor cables.
21/58
Drivecon Inc. reserves the right to alter or amend the above information without notice.
Summary of Contents for D2L
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