Working With Setpoints & Setpoints Files; Engaging A Device; Entering Setpoints - GE Multilin 850 Instruction Manual

CHAPTER 3: INTERFACES
Working with Setpoints & Setpoints Files
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Engaging a Device

Entering Setpoints

850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
5. If the status indicator is red, verify that the serial, USB, or Ethernet cable is properly
connected to the relay, and that the relay has been properly configured for
communications (steps described earlier).
The settings can now be edited, printed, or changed. Other setpoint and command
windows can be displayed and edited in a similar manner. "Actual Values" windows are
also available for display. These windows can be arranged, and resized, if desired.
When a settings file is being uploaded to a device, the DEVICE IN SERVICE state (Setpoints >
Device > Installation) switches to "Not Ready" for the duration of the upload. This ensures
that all new settings are applied before the device is operational. Settings file upload
operations include both 1) Enervista 8 Series Setup software menu option "Write Settings
File to Device" and 2) saving Logic Designer changes online.
Individual setting changes from the device front panel or Enervista 8 Series Setup software
Online Window do not change the DEVICE IN SERVICE state.
The software may be used in on-line mode (relay connected) to directly communicate with
a relay. Communicating relays are organized and grouped by communication interfaces
and into sites. Sites may contain any number of relays selected from the product series.
The System Setup page is used as an example to illustrate entering setpoints. In this
example, we are changing the voltage sensing setpoints.
1. Establish communications with the relay.
2. Select the Setpoint > System > Voltage Sensing menu item.
3. Select the Aux. VT Secondary setpoint by clicking anywhere in the parameter box. This
displays three arrows: two to increment/decrement the value and another to launch
the numerical keypad.
4. Clicking the arrow at the end of the box displays a numerical keypad interface that
allows the user to enter a value within the setpoint range displayed near the top of the
keypad: Click = to exit from the keypad and keep the new value. Click on X to exit from
the keypad and retain the old value.
SOFTWARE INTERFACE
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