Spectrum Controls 1762sc-OF8 - Manual (Page 16)

2-6 MicroLogix™ 1200 IO 8 Ch Output Module
User’s Manual Pub. 0300246-01 Rev. B
Figure 2-4
Note: Use the pull loop on the connector to disconnect modules. Do not
pull on the ribbon cable.
!
Attention
EXPLOSION HAZARD
 In Class I, Division 2 applications, the bus connector must be
fully seated and the bus connector cover must be snapped in
place.
 In Class I, Division 2 applications, all modules must be
mounted in direct contact with each other as shown on page 2-
4. If DIN rail mounting is used, an end stop must be installed
ahead of the controller and after the last 1762 I/O module.
Section 2.6
Field Wiring
Connections
Consider the following when wiring your system:
General
 Power and output wiring must be in accordance with Class 1, Division 2 wiring
methods, Article 501-4(b) of the National Electric Code, NFPA 70, and in
accordance with the authority having jurisdiction.
 The analog common (COM) is not connected to earth ground inside the module.
All terminals are electrically isolated from the system.
 To ensure optimum accuracy for voltage type outputs, limit overall cable
impedance by keeping all analog cables as short as possible. Locate the I/O
system as close to your voltage type sensors or actuators as possible.
 Digital and analog power must be supplied by an Isolated Secondary Limited
Energy Low Voltage source.
 Use Belden™ 8761, or equivalent, shielded wire.