Page 9-3
IL17569
Effective June, 2001
Table 9.1 Output Configuration Default Relay Settings
Output Gate Function Inputs Dropout
Trip 1 Relay OG1 OR Any Protection Trip, 5-cycle Off Delay
Open Breaker
Trip 2 Relay OG2 Disabled unused
Relay 3 OG3 OR Breaker Failure Trip Latched
Relay 4 OG4 Disabled unused
Relay 5 OG5 OR Close Breaker 10-cycle Off Delay
Alarm Relay OG6 OR Any Protection Trip, Any Alarm Trip, Any Latched
System Alarm, Any Breaker Alarm
Healthy Relay N/A Not Programmable
In addition to the output relays, the Auxiliary LED and the Pickup, Trip and Alarm Indicators are also programmable. The programming for the
Auxiliary LED uses the same type of Output Logic Gate (OG7) as the output relays. The Trip and Alarm Indicators are programmed as the
OR of the seven output relays. Each of the output relays is enabled or disabled from inclusion in the OR function. See Figure 9-2 Trip and
Alarm Indicator/Pickup Indicator.
Figure 9-2. Trip and Alarm Indicator/Pickup Indicator
The Pickup Indicator is programmed as the OR of the protective functions. Each of the protective categories IOC, TOC, Voltage, Over
Frequency, Under Frequency, Unbalance, and Protection Alarms is enabled or disabled from inclusion in the OR function. The dropout of the
Trip, Alarm and Pickup Indicators can be set to latched or unlatched operation. See Default settings in Table 9.2.
Table 9.2 Output Configuration Default Indicator Settings
Output Gate Function Inputs Dropout
Auxiliary LED OG7 OR unused
Trip Indicator N/A OR Trip 1, Trip 2 Latched
Alarm Indicator N/A OR Alarm Relay, Healthy Relay Dropout Latched
Pickup Indicator N/A OR IOC, TOC, Voltage, Frequency, Unbalance Unlatched
Note: Relay K7 is always Relay Healthy. It is energized when all internal diagnostics pass,
and de-energized when any diagnostic warning or failure is detected.
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