RFL Electronics RFL 9300 - Table 6-4. Alarm Codes for Two-Terminal and Three-Terminal RFL 9300 Charge Comparison System

RFL 9300 RFL Electronics Inc.
January 30, 2002 6-15 (973) 334-3100
6.4.1 THE STANDBY MODE
When the RFL 9300 is in the STANDBY mode, a pair of dots move across both lines of the display, from left to
right if there is no alarm condition. If an alarm condition occurs, the word "ALARM" and one or more code num-
bers will appear on the display.
The RFL 9300 senses 28 different conditions that will cause an alarm. If one of these conditions exists, the word
"ALARM" and a code number will appear on the display. If the beeper is enabled, it will sound intermittently. A
list of alarm codes appears in Table 6-4. Note that several of these codes are reserved for future use, two of the
codes (17 and 47) are not present in two-terminal systems, and that four codes (54-57) are only present in sin-
gle-pole systems.
Table 6-4. Alarm codes for Two-Terminal and Three-Terminal RFL 9300 Charge Comparison System
Code Condition
10 Local Display Controller Alarm: 9 seconds has elapsed without supervisor communications.
12 Local Display Controller Alarm: No acknowledgment from Supervisor Module in 200 ms.
13 Local Display Controller Alarm: Three non-acknowledgments (NAKs) from Supervisor Module.
14 Oscillography Controller Alarm: Display controller has lost communication with Oscillography Board.
15 Local Display Controller Alarm: Non-volatile RAM failure on Display Controller.
16 Transmit Address 1: Verification of Local and Remote addresses has failed.
17
(1)
Transmit Address 2: Verification of Local and Remote addresses has failed.
20 Reserved for future use.
21 Reserved for future use.
22 Reserved for future use.
23 Reserved for future use.
24 Display Controller Trip Alarm: DTT dc trip current sensed for more than 500 ms.
25 Display Controller Trip Alarm: Current Sense circuit failure.
27 Display Controller Trip Alarm: DC trip current sensed for more than 500 ms.
30 Local Alarm From Supervisor Module: Local Charge Comparison Trip without fault detector - ground subsystem.
31 Local Alarm From Supervisor Module: Local Charge Comparison Trip without fault detector - Phase A.
32 Local Alarm From Supervisor Module: Local Charge Comparison Trip without fault detector - Phase B.
33 Local Alarm From Supervisor Module: Local Charge Comparison Trip without fault detector - Phase C.
34 Local Alarm From Supervisor Module: Parallel Port Alarm.
35 Local Alarm From Supervisor Module: Software Mismatch Alarm.
37 General Alarm: Remote #1 configuration mismatch.
40 Reserved for future use.
41 Reserved for future use.
42 Reserved for future use.
43 Reserved for future use.
44 Reserved for future use.
45 Local Alarm: Open conductor alarm.
46 General Alarm: System communications alarm.
47
(1)
General Alarm: Remote #2 configuration mismatch
54
(2)
Single-Pole Logic: General Alarm
55
(2)
Single-Pole Trip Alarm: Phase A DC trip current sensed for more than 500ms
56
(2)
Single-Pole Trip Alarm: Phase B DC trip current sensed for more than 500ms
57
(2)
Single-Pole Trip Alarm: Phase C DC trip current sensed for more than 500ms
60 Phase A Controller: General Alarm
61 Phase B Controller: General Alarm
62 Phase C Controller: General Alarm
63 3IO Controller: General Alarm
(1)
These codes not present in Two-terminal systems.
(2)
These alarms only present in single-pole systems.