70
Options 58.0 to 61.2 - 4-20mA output functions *
These option parameters determine the function of each 4-20mA output on the boards installed in
option slots 1 and 2. The table below details each option parameter.
Depending on the values of option parameters 58.0, 59.0, 60.0 and 61.0 (see table above), it is possi-
ble to transmit one of the variables from the list below as a 4-20mA signal:
0
- No function. The output will transmit 0mA.
1
- Modulation rate (4mA when not modulating).
2
- Boiler pressure/temperature measured value.
3
- Boiler pressure/temperature setpoint
4
- Calculated efficiency.
5
- Inlet temperature.
6
- Flue temperature.
7
- Oxygen level.
8
- CO2 level.
9
- CO level
10
- Smoke level
11
- SOx level
12
- NOx level
13
- Modulation rate master signal for twin burner slaving. If the burner is
modulating, the unit outputs a 4-20mA modulation rate signal. Otherwise, the unit out
puts 0mA. The slave burner should have its auxiliary modulation input configured for
remote tracking (see option parameter 03.3).
When output functions 2 to 12 are used, the output zero and span values must be entered. The option
parameters determining zero and span values are detailed below:
Option parameter
Zero
Span
58.0
58.1
58.2
59.0
59.1
59.2
60.0
60.1
60.2
61.0
61.1
61.2
Note: If an output on an IDB board is chosen, but the output is already configured for use with a
inverter, the inverter function will take precedence.
OPTION
PARAMETER
OUTPUT
DESCRIPTION
58.0
Opt. slot 1,Output 1
If the board installed in option slot 1 is an IDB, this option parameter relates
to output terminals PH4-5
59.0
Opt. slot 1, Output 2
If the board installed in option slot 1 is an IDB, this option parameter relates
to output terminals PH2-3
60.0
Opt. slot 2, Output 1
If the board installed in option slot 2 is an IDB, this option parameter relates
to output terminals PL4-5
If the board installed in option slot 2 is an FMI, this option parameter relates
to output terminals PM3-4
61.0
Opt. slot 2, Output 2
If the board installed in option slot 2 is an IDB, this option parameter relates
to output terminals PL2-3
If the board installed in option slot 2 is an FMI, this option parameter relates
to output terminals PM1-2
