56
3
- Flue gas limit and secondary (24 hour) faults
4
- Primary (e.g. drive positioning) faults only
5
- Primary and flue gas limit faults
6
- Primary and secondary (24 hour) faults
7
- ALL FAULTS - Primary, secondary and flue gas limits
Option 11.0 - Setpoint 1 input type (0 – 4)*
The setpoint 1 input type must be selected as one of five options. See section 8.3 for information on
how this function is performed.
0
- Track modulation input
(Where minimum input signal = low fire, maximum input signal = high fire)
1
- Resistance thermometer (RTD) input (0-350°C or 32-662°F)
2
– Measured value input display range up to 999 with PID control
3
– Measured value input display range up to 99.9 with PID control
4
– Measured value input display range up to 9.99 with PID control
Option 13.0 - Setpoint 2 input type (0 – 5)*
The setpoint 2 input type must be selected as one of six options. See section 8.3 for information on
how this function is performed.
0
- Setpoint 2 not available
1
- Track modulation input
(Where minimum input signal = low fire, maximum input signal = high fire)
2
- Resistance thermometer (RTD) input (0-350°C or 32-662°F)
3
- Measured value input display range up to 999 with PID control
4
- Measured value input display range up to 99.9 with PID control
5
- Measured value input display range up to 9.99 with PID control
Option 11.1 - Setpoint 1 zero value (0 – 999 / 00.0 – 99.9 / 0.00 – 9.99)*
Option 13.1 - Setpoint 2 zero value (0 – 999 / 00.0 – 99.9 / 0.00 – 9.99)*
When the appropriate setpoint is selected, this is the measured value which is displayed when the
minimum signal level (0V or 4mA) appears at the modulation input. This parameter is not used when
a track modulation or RTD input type is selected.
Option 11.2 - Setpoint 1 span value (0 – 999 / 00.0 – 99.9 / 0.00 – 9.99)*
Option 13.2 - Setpoint 2 span value(0 – 999 / 00.0 – 99.9 / 0.00 – 9.99) *
When the appropriate setpoint is selected, this is the measured value which is displayed when the
maximum signal level (5V or 20mA) appears at the pressure input. This parameter is not used when
a track modulation or RTD input type is selected.
Option 11.3 - Setpoint 1 control value (0 – 999 / 00.0 – 99.9 / 0.00 – 9.99)
Option 13.3 - Setpoint 2 control value (0 – 999 / 00.0 – 99.9 / 0.00 – 9.99)
This is the control value that is used in the PID control loop for setpoint 1 or 2. When the unit is in
auto mode, the PID control loop will modulate the boiler to maintain the measured value at the same
level as this parameter.
The parameter may be adjusted if the following conditions exist:
•
The unit is in set-up or commission mode.
•
Option 11.0 / 13.0 is not set to zero.
•
The appropriate setpoint is selected.
Option 11.4 - Setpoint 1 proportional term (0 – 100%)
Option 13.4 - Setpoint 2 proportional term (0 – 100%)
