Schweitzer Engineering Laboratories SEL-421-4 - Table 11.37 Relay Word Bits: Alarms; Table 11.38 Relay Word Bits: Time and Date Management and Frequency Estimation

11.55
Date Code 20171021 Instruction Manual SEL-421 Relay
Relay Word Bits
Row Lists
204 * Reserved
204 * Reserved
204 * Reserved
204 * Reserved
204 * Reserved
205 * Reserved
Table 11.37 Relay Word Bits: Alarms
Row Name Description
206 SALARM Software alarm
206 HALARM Hardware alarm
206 BADPASS Invalid password attempt alarm
206 HALARML Latched alarm for diagnostic failures
206 HALARMP Pulsed alarm for diagnostic warnings
206 HALARMA Pulse stream for unacknowledged diagnostic warnings
206 SETCHG Pulsed alarm for settings changes
206 GRPSW Pulsed alarm for group switches
207 * Reserved
207 * Reserved
207 * Reserved
207 * Reserved
207 * Reserved
207 * Reserved
207 ACCESS A user is logged in at Access Level B or above
207 ACCESSP Pulsed alarm for logins to Access Level B or above
208 * Reserved
208 * Reserved
208 * Reserved
208 * Reserved
208 * Reserved
208 * Reserved
208 PASSDIS Asserted to indicate PW disable
208 BRKENAB Asserted to indicate breaker control enable
Table 11.38 Relay Word Bits: Time and Date Management and Frequency Estimation (Sheet 1 of 2)
Row Name Description
209 TSNTPB Asserts if time was synchronized with backup NTP server before SNTP time-out period
expired
209 TSNTPP Asserts if time was synchronized with primary NTP server before SNTP time-out period
expired
209 TIRIG Assert while time is based on IRIG for both mark and value
209 TUPDH Assert if update source is high-accuracy time source
Ta b l e 1 1 . 3 6 Relay Wo rd B i t s : S E L
OGIC Control Equation Error and Status Reporting (Sheet 2 of 2)
Row Name Description