Flash Technology FTB 312-3, Reference Manual

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FTB 312 and FTS 316 Revision13 — 02-20-2001 1-7
closed) when the condition indicated on the front
panel occurs.
The ability to monitor some states is available
only on the “A” model power converters. These are
indicated on the main panel in Figure 1-1.
Table 1-6 describes the available alarm functions
on TB1 of the power converter.
Master/Slave Interconnect
The master/slave interconnect terminals at TB1-4
and TB1-5 are connected between power convert-
ers in a multiple-unit installation. These terminal
connections supply two functions:
•
A synchronization signal to flash their lights
simultaneously.
•
A failure of a top light in night mode causes
the master power converter for that failing
light to signal backup mode to all power con-
verters; all flashheads on the structure flash in
backup mode (correct night intensity white
back-up). Marker lights are turned off.
3123AC
Figure 1-1 View of TB1 Wiring Functions for FTB 312-3A/AE or FTB 312-3T/TA
Table 1-6 Alarm Functions
Alarm/
System
Function
White
Alarm/
all
Connections between TB1-7, and TB1-6 or TB1-8 signal the alarm for improper flash intensity or no flash at
all. The normally open (NO) contacts close and the normally closed (NC) contacts open.
Red
Alarm/
all
Connections between TB1-10, and TB1-9 or TB1-11 signal the alarm under the following conditions:
•
The flashhead malfunctioned during red operation.
• The PC 312-3 detected improper flash intensity or no flash at all during red night mode operation.
The normally open (NO) contacts close and the normally closed (NC) contacts open.
Marker
Alarm/
all
Connections between TB5-5, and TB5-4 or TB5-6 signal the alarm under the following conditions:
•
One or more marker lamps is not functioning.
• The marker lamp current is too low or not present.
The normally open (NO) contacts close and the normally closed (NC) contacts open.
Intensity
Error/
“A”
“A” models signal a day intensity error between TB1-12 and TB1-17 or a night intensity error between
TB1-13 and TB1-17. Error occurs if a flashhead is flashing at the incorrect intensity for the day or night light-
ing condition determined by the photocell. The normally closed (NC) contacts open.