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4 CoMMIssIonInG
4.1 self-Checking Function
When the signal processor is powered and the viewing head is
properly connected, the self-checking function indicator SELF-
CHECK LED flashes at a rate of once per second, confirming
that both the P222 signal processor and the viewing head are
functioning.
Any component failure will cause a lockout condition that will
de-energize the flame relays. The SELF-CHECK light on the P222
will indicate this condition with a steady on or off illumination. A
reset via the RESET button is required to return the system to the
normal operating state. Reset can also be accomplished through
serial communications.
If the fault condition still exists, the SELF-CHECK LED will be
steady on or completely off. Generally, a steady on SELF-CHECK
LED indicates the viewing head is experiencing an issue. If the
SELF-CHECK LED is off, the most likely cause is that the signal
processor is experiencing an issue.
Refer to page 6 (5 Assistance in the event of malfunction) for
guidance.
4.2 Front Panel LeD Indications and Push Button Functions
The following describes the functions of the LED indicators, dis-
plays and push buttons of the P222 signal processor:
– Four digit display:
- When in operating mode, the display indicates the current
flame signal.
- After the FLAME ON button is pressed, the display indicates
Flame On setpoint. This parameter may be adjusted using the
up/down arrow buttons.
- After buttons A and B are pressed, the display shows the
menus to adjust gain, set default, select Modbus address, etc.
Refer to the programming flowcharts at page 6 (4.5.1 Flow
Chart – Programming UV Gain) and page 6 (4.5.2 Flow
Chart – Programming Relay Settings, checking Viewing Head
Temperature).
– R1 RELAY ON LED (red):
- Only illuminated if the R1 relay is energized FLAME ON push
button:
- Allows user to select flame on threshold value.
- When the flame signal is above the selected value, the flame
relay will be energized.
– A Push button:
- Used in conjunction with B push button to select program-
ming menu.
- Selects Channel A as indicated by flashing or steady on.
- Also acts as NO button while programming; do not accept
during menu/adjustment selection.
– B Push button:
- Used in conjunction with A push button to select program-
ming menu.
- Selects Channel B as indicated by flashing or steady on.
- Also acts as YES button while programming; do accept
during menu/adjustment selection.
–
(Up) Push button:
- Used to increase parameter value when in programming
mode.
- Toggles between Auto and Manual modes as indicated on
the display (Auto or HAnd).
- Used in conjunction with AUTO ON LED, which when on
indicates auto mode, when off means manual mode and when
flashing means reset required (press RESET button)
- In auto mode, flame relays R1 and R2 automatically energize
when flame is recognized after a flame out condition.
- In manual mode, flame will only be recognized after manual
acknowledgement by the operator (press RESET button).
- Note: Reset can also be accomplished from a remote point
by closing the contacts between the GND and MAN CLEAR
terminals on the signal processor.
– STORE push button:
- Stores new parameter values such as Flame On threshold
and Gain.
- After making changes will be displayed indicating the new
values are accepted and stored.
–
(Down) Push button:
- Used to decrease parameter value when in programming
mode.
– AUTO ON / MANUAL (HAnd) / OFF LED (orange):
- Steady on indicates auto mode
— Off indicates the P222 is in manual mode (HAnd)
- Flashes when reset is required (press RESET button).
– SELF-CHECK LED (green):
- Flashes when system operation passes all self-check tests
(normal).
- Steady on indicates a lockout condition.
- Off indicates no power to P222 or internal fault.
– Bar Graph display:
- Indicates proportional flame signal level.
- Use GAIN SET push button and up/down arrow buttons to
adjust output.
– R2 RELAY ON LED (red):
- Only illuminated if the R2 relay is energized.
– GAIN SET push button:
- Use in conjunction with the up/down arrow buttons to change
the bar graph display gain. This button does not change the
UV tube gain setting.
– R1 TRIP DELAY push button:
- Use in conjunction with the up/down arrow buttons to adjust
the R1 RELAY time delay (0-60 seconds) for flame failure
response time.
- Value displayed as __00.
- R1 relay output may be used for auto re-ignition of the pilot.
- Setting MUST be less than R2 TRIP DELAY setting.
– R2 TRIP DELAY push button:
- Use in conjunction with the up/down arrow buttons to adjust
the R2 RELAY time delay (1second to 60 minutes) for flame
failure response time.
- Value displayed as _ _ 00 for time in seconds and 00 _ _ for
time in minutes.
- R2 relay output may be used for alarm indication.
- Setting MUST be greater than R1 TRIP DELAY setting.
– RESET push button:
- Resets a lockout condition.
- Also used to exit a menu while programming the P222.
- Used to acknowledge the flame signal in manual (HAnd)
mode, enabling the relays to energize.
vWhen pushed together with down Push button, P222 will
display the viewing head temperature in degrees C.
4.3 Configuring the P222
4.3.1 setting the R1 Relay Delay
1 Press the R1 Trip Delay button.
➔ Notice that the current trip delay is displayed in seconds
preceded by two underscores (_ _ 0 5).
2 Adjust to the desired value using the Up and Down arrow
buttons and press store.
➔ (– – – –) will be displayed to indicate that the new value has
been saved and the value that was saved is re-displayed for
verification. The range in seconds is from 1 to 60 or from 1 to
the value of R2 relay delay if it is less than 60.
4.3.2 setting the R2 Relay Delay
1 Press the R2 Trip Delay button.
➔ Notice that the current trip delay is displayed in seconds or
minutes. If the value is preceded by two underscores (_ _ 0 5),
then the delay is in seconds, else if the value is followed by two
dashes (0 5 – –), then the delay is in minutes.
EN-4
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