DSDP170 ABB redundant module power module

Description

The front panel provides DSDP170 a local operator interface with a 40-character liquid crystal

display, LED status indicators, control keys, and program port. The display and status

indicators update alarm and status information automatically. DSDP170 The control keys are used

to select the appropriate message for entering setpoints or displaying measured values.

The RS232 program port is also provided for connection with a computer running the

EnerVista 745 Setup software.

All messages are displayed in English on the 40-character DSDP170 liquid crystal display, which is

backlit for visibility under varied lighting conditions. When the keypad and display are not

actively being used, the screen sequentially displays up to 30 user-selected default

messages providing system information. These messages appear after a time of inactivity

that is programmable by the user. Pressing any key after default messages have appeared

will return the display to the last message displayed before the default messages

appeared. Trip and alarm condition messages automatically override default messages. All

display pixels are illuminated briefly during power up self-testing, and can be energized by

pressing any key when no trips or alarms are active.

4.1.3 LEDs

Front panel indicators are grouped in three columns: DSDP170 Relay Status, which provides

information about the state of the 745; System Status, which provides information about

the state of the transformer and the power system; and Output Status, which provides

details about abnormal conditions that have been detected. The color of each indicator

conveys information about its importance:

GREEN (G): indicates a general condition

AMBER (A): indicates an alert condition

RED (R): indicates a serious alarm or warning

4.1.4 LED Indicators

4.1.4.1 745 Status

RELAY IN SERVICE: The In Service LED is on when relay protection is operational. The

indicator is on only if all of the following conditions are met:

– The S1 745 SETUP  INSTALLATION  745 SETPOINTS setpoint is set to

“Programmed”.

– The S6 TESTING  OUTPUT RELAYS  FORCE OUTPUT RELAYS FUNCTION setpoint is

set to “Disabled”.

– The S6 TESTING  SIMULATION  SIMULATION SETUP  SIMULATION FUNCTION

setpoint is set to “Disabled”.

– No self-test errors which have an effect on protection have been detected.

– Code programming mode is inactive.

– Factory service mode is disabled.

SELF-TEST ERROR: The Self-Test Error LED is on when any of the self-diagnostic tests,

performed either at power-on or in the background during normal operation, has

detected a problem with the relay.

TEST MODE: The Test Mode LED indicator DSDP170 is on when any of the 745 testing features

has been enabled. The indicator is on if any of the following conditions are met:

– The S6 TESTING  OUTPUT RELAYS  FORCE OUTPUT RELAYS FUNCTION setpoint DSDP170 is

set to “Enabled”.

– The S6 TESTING  ANALOG OUTPUTS  FORCE ANALOG OUTPUTS FUNCTION

setpoint is “Enabled”.

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