19
Chapter 3. Operation
Press the RESET switch for 3 s or longer or short the contact reset input for 3 s or
longer to clear all active events at the same time. However, note that the RESET
switch and contact reset input cannot be used to clear events during lockout.
Display
Event name
Operation
A1
*
UV flame detector check
(combustion time)
Turns ON if the combustion time exceeds the value
set for the UV flame detector (combustion time)
checking time.
A2
Product service life check
(total operating time)
Turns ON if the total operating time exceeds
the value set for the product service life (total
operating time) checking time.
A3
Product service life check
(total combustion count)
Turns ON if the total combustion count exceeds
the values set for the product service life (total
combustion count) checking time.
* This can also be used as a maintenance event for the flame detector or flame rod.
Handling Precautions
•
When the product is shipped, only A1 (UV flame detector check) is
configured as an event.
•
It is necessary to configure event settings in order to have an event code
displayed when an event occurs. Configure event settings using Smart
Loader Package model SLP-A55 (SLP-A55J91).
z
RESET switch
Lockout can be canceled by pressing the RESET switch for 1 second. After lockout
is canceled, start input is not accepted for about 5 seconds.
z
Contact reset input (terminal 24)
Lockout can be canceled by shorting the contact reset input for 1 second. After
lockout is canceled, start input is not accepted for about 5 seconds.
If lockout is canceled by contact reset input five times or more within 15 minutes,
acceptance of contact reset input is temporarily suspended. When 15 minutes have
passed since the first lockout cancellation, contact reset input is again accepted.
1st time
Lockout
Lockout reset
(contact reset input)
In the last 15 minutes,
lockout was reset fewer than 5 times,
so contact reset input is accepted.
In the last 15 minutes,
lockout was reset 5 times or more,
so contact reset input is not accepted.
Resetting lockout
becomes possible again.
1st time
2nd time
2nd time
3rd time
3rd time
4th time
4th time
5th time
5th time
6th time
15 minutes pass since the first lockout reset.
×
×
×
6th time
During the time when contact reset input is not accepted, the alarm LED blinks.
Even if the alarm LED is blinking, lockout can be canceled by pressing the RESET
switch on the burner controller.
