Siemens SG8158-00 manual User Interface, Keypad, Indicators, LEDs

				.		User Interface
3	User Interface
				Key	Name	Function
Operation, parameter selection, and control of the ISGS relay
					Password	Accesses the password function,
are performed using the front panel controls and indicators.
						which is required for programming
They consist of a 26-key membrane keypad, a 2-line by					l	relay settings.
16-character liquid crystal display (LCD), three light-emitting
					Direct Addr	Allows direct entry of addresses.
diodes (LEDs), and the front port.
3.1	Keypad
The relay can be controlled via the keypad, the front port, or
					Trip Log	Displays the trip log.
the optional rear port. This manual covers only keypad oper-
ations. For information about communicating with the ISGS
relay via the data ports, refer to the documentation supplied
with the communications software (WinPM or Wisdom).					Target Reset	Resets the Trip LED.
The ISGS relay keypad allows access to any relay informa-
tion or function for display or parameter changes where
					Double Arrow	Scrolls through the address
applicable. The keypad consists of 26 keys. Table 3.1 pro-
vides a detailed description of each key type.						blocks.
To access relay information or functions for display or modifi-
					Single Arrow	Scrolls through the addresses
cation, use the Arrow keys to scroll through relay addresses
						within an address block.
or use the Direct Addr key and the specific address number
to go directly to the information or function.
Use the Double Arrow keys to scroll through the address					F	Saves new settings when followed
						by Enter, enters or exits subad-
blocks and use the Single Arrow keys to scroll within an
						dress level, or switches to alter-
address block.
						nate parameter set when followed
						by 1 or 2 and Enter.
3.2	Indicators
					Numeric	Used to enter an address number
The	indicators on the		front panel display consist of three			after pressing Direct Addr, or to
LEDs and a two-line LCD.						enter a numeric setting.
3.2.1		LEDs			Decimal Point	Indicates a decimal point or the
						separation between month, day,
The LED indicators are used to provide general status infor-						and year, or between hours, min-
mation, which alerts the operator to an event or problem and						utes, and seconds.
prompts the operator to use the LCD to review the logs for
					Plus/Minus	Toggles between positive and
more detailed information. The three LEDs and their func-
						negative values.
tions are listed below.
					Backspace	Deletes one character to the left or
LED		Color	Function			selects backwards.
System		Green	Denotes the relay is operating properly
			(always on when relay is in service).		Infinity	Programs the setting to the high-
						est possible value.
Pickup		Red	Denotes a protective function is in
			pickup.
Trip		Red	Denotes a protective function or		Enter	Chooses the setting option, enters
			remote command has initiated a trip.			a setting value, or confirms the
						address entered after pressing
						Direct Addr.
Both the Pickup and the System LED operate automatically					Yes	Accepts the displayed setting, or
and do not require a reset.						replies “yes” to the displayed
						prompt.

•The System LED remains on as long as power is applied

	and the relay is functioning properly.	No	Rejects the displayed setting,
			allows entry of a numeric setting,
•	The Pickup LED is illuminated as long as a protective		replies “No” to the displayed
			prompt, or selects forward.
	function is in pickup.

Table 3.1 Front Panel Keys

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