CB780/CB784 RELAY MODULES
32-00207—01 2
• First-out expanded annunciation with 26 Light
Emitting Diodes (LEDs) for limits and interlocks
(optional).
• Five sequence information Light Emitting Diodes
(LEDs).
• Five function Run/Test Switch.
• Interchangeable plug-in flame amplifiers.
• Local or remote annunciation of operation and fault
information.
• Nonvolatile memory for retaining history files and
sequencing status after loss of power.
• Remote reset (optional).
• Report generation (optional).
• Burner controller data:
— Sequence status.
— Sequence time.
—Hold status.
—Lockout/alarm status.
— Flame signal strength.
— Expanded annunciator status.
— Total cycles of operation.
— Total hours of operation.
— Fault history of six most recent faults:
• Cycles of operation at time of fault.
• Expanded annunciator data at time of fault.
• Fault message and code.
• Hours of operation at time of fault.
• Sequence status at time of fault.
• Sequence time at time of fault.
— Diagnostic information:
• Device type.
• Flame amplifier type.
• Flame failure response time.
• Manufacturing code.
• On/Off status of all digital inputs and outputs.
• Selected prepurge time.
• Software revision and version of CB780/CB784
and Keyboard Display Module.
• Status of configuration jumpers.
• Status of Run/Test Switch.
SPECIFICATIONS
Electrical Ratings (see Table 1):
Voltage and Frequency: 120 Vac (+10/-15%), 50 or 60 Hz
(±10%).
Keyboard Display Module: 13 Vdc peak full wave rectified
(+20/-15%).
Power Dissipation:
CB780/CB784: 10W maximum.
Display Module: 3W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing: 15A maximum, Type SC or equivalent—fast blow.
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