61
®
EK38
Valve Close Time t
test
(s)
Time for which each half of the valve prove test will be conducted (refer to
Gas safety valve proving sequence for details). This time counts down to
zero during stages 2 and 4 of the valve prove test.
EK39
Gas Pressure Change (P
test
)
Maximum pressure drop/rise allowed during the valve prove test (refer
toGas safety valve proving sequence for details).
EK40
Modulation Rate
Current percentage modulation rate (based on lead drive position), where:
0 - Low fire (or burner off)
100 - High fire.
EK 41
Nearest Profile Setpoint
The number of the profile setpoint which is nearest to the current lead drive
position.
EK42
Drives a At Setpoint
Represents which drives are currently at their setpoints, where:
0 - All drives are at their setpoints and not moving.
NON-ZERO - One or more drives are not at their setpoints.
EK43
Potentiometer Supply Voltage (V)
The measured potentiometer supply voltage.
EK44
Voltage Reference Error (V)
The error between the measured voltage reference and the calibrated value.
EK45
Gas Servo-Motor Setpoint (°)
Setpoint for each servo-motor, in angular degrees
.
EK46
Oil Servo-Motor Setpoint (°)
EK47
Air Damper 1 Servo-Motor Setpoint (°)
EK48
Air Damper 2 Servo-Motor Setpoint (°)
EK49
Gas Servo-Motor Error (°)
How far each servo-motor is from its setpoint, in angular degrees.
EK50
Oil Servo-Motor Error (°)
EK51
Air Damper 1 Servo-Motor Error (°)
EK52
Air Damper 2 Servo-Motor Error (°)
EK53
Gas Servo-Motor Response Speed (s/
90°)
The measured time taken (in secs.) for each servo-motor to move over 90°.
EK54
Oil Servo-Motor Response Speed (s/90°)
EK55
Air Damper Response Speed (s/90°)
EK56
Air Damper 2 Response Speed (s/90°)
EK57
Message GAP
EK58
Undefined
EK59
Undefined
EK60
Manufacture Day
Date of manufacture/test of CPU board.
EK61
Manufacture Month
EK62
Manufacture Year
EK63
Software Issue
Currently installed software issue.
EK64
CPU Board Hardware Issue
EK65
CPU Board Serial No. (low 3 digits)
The 6-digit CPU board serial number.
This serial number is required to obtain the boiler sequencing and/or serial
data communications passcodes.
EK66
CPU Board Serial No. (high 3 digits)
EK68
Adjust Ratio Times
The number of times adjust ratio mode has been used.
EK69
Commission Ratio Counter
The number of times commission ratio mode has been used.
EK70
Number of Tries
The number of times the burner was reset.
EK71
Oxygen Level (%)
* optional NX280HW expansion unit
must be installed
Power output to the probe heater (0-100%)
ENGINEER’S KEY PARAMETER LIST
NO
NAME
DESCRIPTION
