Rockwell Automation 1402-LSM Line Synchronization Module Installation Instructions - Manual (Page 12)

Chapter 2
Installation
2–2
The LSM requires the use of a Cat. No. 1771-WC (10 position, gold
contacts) Swing Arm.
There are two sets of terminals associated with the LSM; a 10 position
swingarm and an 8 position fixed terminal block. All customer wiring to the
LSM is accomplished via these terminals on the front of the module. The
10–position swingarm is used to make all of the voltage (PT) connections to
the module as well as the Load Share connections. These connections are
designed to accommodate wire size 0.5 mm
2 (22 AWG) through size 2.0
mm 2 (14 AWG). The 8–position fixed terminal block is used to make all of
the current (CT) connections. These connections are designed to
accommodate gauge wire size 0.5 mm
2 (22 AWG) through ring lugs size
3.25 mm 2 (12 AWG).
Phasing and polarity of the AC current and voltage inputs and their
relationship are critical for the correct operation of the unit. Figure 2.1
through Figure 2.5 shown on Pages 2–7 through 2–11 provide wiring
diagrams to help ensure correct installation.
Two (2) conductor shielded wire (22 gauge or greater) should be used for
Load Share wiring. The shield shall be grounded at the PLC Chassis ground
point only.
Prevent Electrostatic Discharge
!
ATTENTION: Electrostatic discharge can damage integrated
circuits or semiconductors if you touch backplane connector pins.
Follow these guidelines when you handle the module:
•
Touch a grounded object to discharge static potential.
•
Wear an approved wrist-strap grounding device.
•
Do not touch the backplane connector or connector pins.
•
Do not touch circuit components inside the module.
•
If available, use a static-safe work station.
•
When not in use, keep the module in its static-shield box.
Swing Arm
Wiring