NorthStar SLIM Tach
®
SL56 Instruction Manual
2.3 Electrical Installation
Electrical connections are made to the sensor module through a standard 1/2 inch NPT liquid tight flexible conduit. The nipple
length may be changed to extend the outlet box if desired. Interconnection cable recommendations are as follows: stranded
copper, 22 through 16 gage, braided or foil with drain wire shielding 0.05
µ
F maximum total mutual or direct capacitance,
outer sheath insulated. Shrink tubing may be placed over any wires without insulation. For lengths over 100 feet, use 18 gage
or larger, to a maximum of *1000 feet. If shielded twisted pair wire is used, do not cross channels. Keep each pair of
complementary channel outputs together in a single twisted pair (e.g., A and A complement).
U
*NOTE
U
: Provides CE compliance in applications where cable length is less than 30 meters.
U
CAUTION!
Reversing power and common will not damage the unit. However, applying power to
any of the sensor outputs may cause damage.
Table 1. Signal Coding Table
Signal
Connector Pin
Pigtail Cable
MS 3102E18-IT#
Common
B
A
Z *
No Connection
Vcc (5-15 VDC)
/B
/A
/Z *
Shield
1
2
3
4
5
6
7
8
9
10
Black
Green
Blue
Violet
-----
Red
Yellow
Gray
Orange
Braid
F
B
A
C
E
D
I
H
J
G
* Applies only to units with index pulse capability.
# Pinouts are for the sensors with the MS 3102E18IT connector
NOTE
The shield in the sensor module is isolated from the frame of the encoder for maximum
noise immunity. The shield wire or pin should be connected to the shield of the cable and
that of the drive or other receiving device.
10
©
DYNAPAR +1.800.873.8731
Grounding:
For applications with high ground potential differences, DO NOT ground the encoder through both
machine and controls end. Connect the shield at the controls end only.
NOTE: If the shield is connected at
both ends,
grounding problems that degrade system performance can result.
CE Grounding Measures
– For best EMC immunity the cable screen must be grounded on both encoder and
controls end. For cable lengths longer than 30m or outdoor applications, additional measures must be
implemented to comply with CE requirements. Connection of the encoder to DC power supply network is
prohibited if CE compliance is required. CE-compliant products are tested to EN61326-1 EMC.
In all cases, system CE compliance is ultimately the responsibility of the manufacturer integrating the encoder.
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