Fimap BMg Series - Page 77

Functionality Check - 50 BTO Brush Deck
Conventions:
 +V
b
: Positive voltage of the battery.
 −V
b
: Negative voltage of the battery.
 The emergency button is not pressed, the key contact is closed and the charger is not connected to the
mains.
 The Brush Deck is in working condition.
Input/output:
Satisfied condition Pin V at work V at rest
Brush Motor Activated XE(1) ref to XE(2) +V
b
−V
b
Display Negative J1(4) ref to B- −V
b
−V
b
Display Transmission J1(7) ref to B- +V
b
−V
b
Display Receiving J1(3) ref to B- +V
b
−V
b
Display Positive J1(8) ref to B- +V
b
+V
b
Electrobrake Activated J2(1) ref to J2(2) +V
b
−V
b
Traction pedal pressed J5(3) ref to J5(6) +V
b
−V
b
Operator Seated J7(15) ref to J7(1) +V
b
−V
b
Brushes Actuator in motion J14(1) ref to J14(4) +V
b
−V
b
Brushes Actuator ALL OUT J14(2) ref to J14(6) −V
b
+V
b
Brushes Actuator ALL IN J14(5) ref to J14(6) −V
b
+V
b
Maximum pressure limit switch pressed J14(3) ref to J14(6) −V
b
+V
b
J1 J2
J5 J7
J14
6.6.2 Relative electrical Components
Orbital Brush Motor
The motor is a DC type with permanent magnets, connected directly to the function board via a connector.
With a constant 24 V DC supply (full battery) the single brush motor (M2) draws 1.7 Amps ± 0.1. With a
constant 21 V DC supply (low battery) the absorption is 1.6 Amps ± 0.1.
Actuator
The actuator, by means of the lever and the tie rod, lowers the brush deck, moves it sideways and pushes to
the ground.
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