Rotax 914 F User Manual

Reference
Modification no.
- 0 -
Page
59
Date
1997 02 01
Main
914 F
01476
9.5.4) Output connections on the TCU for lamps
The TCU is furnished with output connections for an external "red" warning
lamp and an "orange" caution lamp.
When switching on the TCU the two lamps are automatically subject to a
function test. Both lamps light up for 1 to 2 seconds and then extinguish.
Orange caution lamp:
Supervision of all sensor inputs by this lamp of the TCU.
The non-ligthing lamp indicates that the TCU is ready for operation. A lamp
keeping blinking indicates a malfunction of the TCU or its periphery.
At trouble, for instance if the wiring is interrupted, the TCU switches over to
pre-programmed default values to warrant engine operation.
■ ATTENTION:Whilst the default values are effective, supervision of the
respective channel e.g. overspeeding, is not possible. Su-
pervision is set inactive.
Red warning lamp:
➪ Exceeding of the admissible boost pressure will activate the red boost
lamp and it will keep lighting until boost pressure falls below threshold.
Threshold ........................1550 hPa (actual boost pressure)
➪ The TCU registers the time of full throttle operation with boost pressure.
Full throttle operation for longer than 5 minutes will make the red warning
lamp blinking.
■ ATTENTION:The red warning lamp helps the pilot to avoid full power
operation with too high boost pressure for longer than 5
minutes as otherwise the engine would be thermally
overstressed.
◆ NOTE: The time observation starts at actual boost pressure of 1250
hPa. After 5 minutes the warning by the red warning lamp
will follow.
The warning stops again as soon the boost pressure falls
below 1250 hPa. If the pressure is exceeding again, warn-
ing by red warning lamp starts anew.

Rotax 914 F Specifications

General

Brand	Rotax
Model	914 F
Category	Engine
Language	English