L90 Line Current Differential System
Chapter 3: Installation
This chapter outlines installation of hardware and software. You unpack, check, mount, and wire the unit, then install the
software and configure settings.
3.1 Unpack and inspect
Use this procedure to unpack and inspect the unit.
Open the relay package and check that the following items have been delivered:
GE EnerVista™ DVD (software and documentation)
L90 Instruction Manual (soft copy on DVD; printed copy if ordered)
UR Family Communications Guide (soft copy on DVD; printed copy if Instruction Manual ordered)
Certificate of Calibration
EC Declaration of Conformity
Front panel label package
Inspect the unit for physical damage.
View the rear nameplate and verify that the correct model has been delivered. The model number is at the top right.
Any protective plastic film on the front panel is normally peeled off, but also can be left on.
For any issues, contact GE as outlined in the For Further Assistance section in chapter 1.
Check that you have the latest copy of the L90 Instruction Manual and the UR Family Communications Guide, for the
applicable firmware version, at
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL