BFI Automation 3016, Original Operating Instructions

Page: 39 / 56

Description
5-5
5.6 Option unit
An additional jumper block with four DIP switches (S1.x)
allows:
1. A manual selection of the sensitivity channel II
2. n.n.
3. The storage of a detected failure
4. The selection of the Intensity output signal 0/4 – 20mA
5.6.1 Choice of sensitivity level II
The sensitivity level can be chosen by DIP switch S1.1.
Position OFF means that sensitivity level I is active. In po-
sition ON sensitivity level II is active.
Sensitivity level II can also be chosen by external signal
from connection a16. See also chapter 4.7.3!
5.6.2 DIP switch S1.2
At present DIP switch S1.2 has no functionality.
5.6.3 Failure detection
A detected failure will be reset by itself. If there is for ex-
ample no flame scanner connected to the flame amplifier,
this will be indicated by the failure LED and the lightning
of the uppermost bargraph. By connecting the flame
scanner the failure indication will be turned off and the
system will continue normal operation. After commission-
ing the system usually the display will be not observed
continuously. To indicate any failure which will come up
for a short moment a storage function can be activated by
swichting DIP switch S1.3 to the ”ON” position.
The system will stay in the failure mode until it will be re-
set by a power supply disconnection (by pulling the plug-
in unit out of the rack).
The DIP switch S1.3 should not be turned on perma-
nently. It should be turned on only for troubleshooting.
Error Hold is only active after the first regular flame signal.
The following failures will be detected: