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T-Product · BCU 465 · 2006 April
Factory Options and Field Programmable Options
Reading the Parameters
Parameter setting
Description
Para
-
meter
Value range
Factory
setting
Field
program
-
able*
Flame signal 01 0 – 30 µA
Program status on last fault 03 x0 – x8
Switch-off threshold of flame amplifier 04 1 – 20 µA 1 µA
POC Control Input 09 0 = No; 1 = Yes **
Restart attempt 12 0 = No; 1 = Yes
0
Flame failure response time 14 1; 2 s 1 s
Self-Check in Start-up/Stand-by position 15
0 = in Start-up;
1 = in Stand-by
1
Minimum On Time 20
up to 25 s (minimum
Safety period at start-up)
0
Minimum Off Time 21 2 – 25 seconds 2
Safety period on start-up t
SA
22 3; 5; 10 s **
Flame proving period t
FS
23 0 – 25 s 0 s
Air valve control 30
0 = only externally
1 = simultaneously to V1
2 = simultaneously to V2
0
Air valve on start-up can be activated externally 31 0 = No; 1 = Yes 0
External air valve control possible during fault lock-out 32 0 = No; 1 = Yes 1
Digital input as 1400 °F auto igition flame management
bypass
33
2 = with shutdown when
bypass has ended;
3 = continue operation
immediately
**
Manual operation limited to 5 minutes or w/o limit 34
0 = w/o limit;
1 = limit 5 minutes
1
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