ABB RET 670, Operator'S Manual

Page: 22 / 96

4.2 Keypad
The keypad is used to monitor and operate the IED. The keypad has the same look
and feel in all IEDs in the IED 670 series. LCD screens and other details may differ
but the way the keys function is identical. The keypad is illustrated in figure
2 .
Figure 2: The HMI keypad
The keys used to operate the IED are described below in table 1 .
Table 1: HMI keys on the front of the IED
Key Function
This key closes (energizes) a breaker or disconnector.
This key opens a breaker or disconnector.
The help key brings up two submenus. Key operation and IED information.
This key is used to clear entries, It cancels commands and edits.
Opens the main menu, and used to move to the default screen.
The Local/Remote key is used to set the IED in local or remote control mode.
This key opens the reset screen.
The E key starts editing mode and confirms setting changes when in editing mode.
Table continued on next page
Section 4
Understand the local human-machine interface
18 Operator's manual
1MRK504049-UEN rev. D
RET 670