82
EK48
Potentiometer supply option board 2
* IDB MUST BE INSTALLED
+16 - Motor 2 5V supply
+32 - Motor 2 15V supply
EK50
Enclosure temperature (ºC)
* FMI MUST BE INSTALLED
Unit's internal temperature
EK51
O2 probe heater power output
* FMI MUST BE INSTALLED
Power output to the probe heater (0-100%)
EK52
O2 probe status
* FMI MUST BE INSTALLED
+1 - Offset fault
+2 - Gain fault
+4 - Heater fault
+8 - Cell mv too high
+16 - Oxygen level <18% during pre-purge
EK53
O2 trim status
0 - O2 trim working, or
+1 - FMI not fitted
+2 - Option 30.0 not 1,
or option 30.5 not 1,
or option 30.8 not 0
or trim not selected via aux input
or trim not selected via serial comms
+4 - O2 set points or flow values incorrect
+8 - Option 30.6 not 0
+16- Not modulating
+32- In commission mode
+64- Probe faulty (see EK52)
+128- Lead drive same as trim drive.
EK54
Modulation rate
The current percentage modulation rate, where
0 - Low fire
100 - High fire
EK55
Nearest setpoint to lead
The number of the profile setpoint which is nearest to the current lead drive position.
EK56
Shutdown Setpoint
The value of EK55 when the last shutdown occurred.
EK60
Adjust ratio entry
Number of times adjust ratio mode has been entered since performing a full memory
erase.
EK61
Commission ratio entry
Number of times commission ratio mode has been entered since performing a full
memory erase.
EK75
Drives at setpoint
Represents which drives are currently at their set points, where:
0 - All drives are at their set points and are not moving
NON-ZERO - One or more drives are not at or are unable to get to their set points
EK76
Instantaneous fuel flow
Calculated fuel flow for currently selected profile. This is only available on single fuel
profiles which have all flow values entered.
EK77
AUX 1 Input value
Scaled value of 4 - 20mA input on AUX1 terminal of FMI board (PM7-8).
EK78
AUX 2 Input value
Scaled value of 4 - 20mA input on AUX2 terminal of FMI board (PM5-6).
EK79
Boiler sequencing status
0 – Boiler sequencing inactive
1 – Boiler held off via sequence control
2 – Boiler in standby via sequence control
3 – Boiler modulating via sequence control
4 – Boiler is lead via sequence control
EK80
Basic drive board feedback value
Used to identify the type of basic drive board fitted and the supply voltage to the feed-
back potentiometers
EK81
PSU reference error (V)
The difference between the calibrated and the measured voltage reference values on
the PSU board
F39 will be generated if this value <-0.13 or >0.13
EK82
Serial communications status
+1 – Toggle on message received
+2 – Serial communications passcode correct, or in commission ratio mode
+4 – Boiler sequencing passcode correct
EK83
CPU board serial no. (low 3 digits)
The 6 digit CPU board serial number.
EK84
CPU board serial no. (high 3 digits)
This serial number is required to obtain the boiler sequencing and/or serial data com-
munications pass codes.
NUMBER
NAME
DESCRIPTION
