Jonker Sailplanes JS3 RES - Figure 2-4 Electrical Interaction Overview; Table 2-1 Electrical Loads

JS-MD 3 RES Maintenance Manual
Supplement
MD11-AMM-00-002
Issue: 00
Rev. 00
Rev. Date: 23-May-22
Page 2-5
Figure 2-4 Electrical interaction overview
Electrical loads
Electrical loads protection required for the system is given in Table 2-1.
Component
Operating Voltage
(V)
Peak Current
(A)
RES propulsion system
270-400
125
Motor controller
12
4
Motor controller cooling fans
12
8
Actuator
12
11.5
DC-DC converter (400V-14.4V)
12
8
Table 2-1 Electrical loads
Control system
The pilot controls the system via the Display and Control Unit (DCU) installed on the instrument
panel. Data from the DCU is sent to the Retraction and Fuse Unit (RFU) and inverter where
the data is processed. Various control inputs include extension/retraction and desired power
setting. RPM is regulated by the motor controller by adjusting the AC power supplied to the
motor.
NOTE: The DCU contains pre-loaded default settings preventing the pilot from
operating the system outside of its envelope. RPM and the temperatures
(controller, motor, and battery) are restricted within the operational limits by
lowering the output power.