UDRF01.04GB
Maintenance manual DRF 400–450
14
11 Common electrics – 11.5.1.4 Manoeuvre switch voltage
11.5.1.4
Manoeuvre switch voltage
page
–
Manoeuvre switch voltage (15E), description
Power feed, control switch circuit
D1.
Diagnostic menu 8.4.1.5
D2.
Diagnostic menu 8.4.1.5
D3.
Diagnostic menu 8.4.1.8
D4.
Diagnostic menu 8.4.1.12
D5.
Diagnostic menu 8.4.1.16
D6.
Diagnostic menu 8.4.1.5
D7.
Diagnostic menu 8.4.1.5
D8.1 Diagnostic menu 8.4.1.17
D8.2 Diagnostic menu 8.4.1.18
D8.3 Diagnostic menu 8.4.1.19
The manoeuvre switch voltage supplies functions which require a
control switch, e.g. working hydraulics.
The control breaker is activated with Switch control breaker.
Condition to activate control breaker voltage is that Switch control
breaker is not pressed in.
•
Start key in position I
•
Ignition voltage (15)
•
Switch, control switch not activated.
When control switch voltage is activated the following takes place.
1.
Ignition voltage is connected to Control unit cab (D790-1).
2.
Control unit cab (D790-1) activates power relay K2 in electrical
distribution box frame and control breaker voltage (15E), feeds
the circuit to relay K3 in electrical distribution box frame.
3.
15E-feed sends a voltage signal to Control unit cab (D790-1) and
verifies that relay K2 is active but that relay K3 is inactive.
This verifies that the operation breaker is working.
4.
Control unit cab (D790-1) activates power relay K3 in the electri-
cal distribution box and the control breaker voltage feeds volt-
age to the control units (not drivetrain).
5.
When Switch control breaker (position A) is pressed down, the
ignition voltage is interrupted to Control unit cab (D790-1) and
thus the control current to relay K2 and relay K3. Electric power
feed to the control units is interrupted and the functions stop.
As an additional safety feature, Control unit cab (D790-1) also
sends the status of the control breaker on the CAN-bus. This
means that the functions are also stopped at signal level.
- +
K3
A
K2
3
5
1
000040
D8
D5
D3
D4
D1
D7
D6
D2
D797-F
D797-O
D791
(D791-2)
(D791-3)
(D791-4)
D790-1
4
2
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Summary of Contents for DRD450-80S4X
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Page 60: ...UDRF01 04GB Maintenance manual DRF 400 450 2 1Engine https www forkliftpdfmanuals com...
Page 86: ...UDRF01 04GB Maintenance manual DRF 400 450 2 2Transmission https www forkliftpdfmanuals com...
Page 100: ...UDRF01 04GB Maintenance manual DRF 400 450 2 3Driveline axle https www forkliftpdfmanuals com...
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Page 130: ...UDRF01 04GB Maintenance manual DRF 400 450 2 6Suspension https www forkliftpdfmanuals com...
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Page 218: ...UDRF01 04GB Maintenance manual DRF 400 450 2 8 Control system https www forkliftpdfmanuals com...
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Page 412: ...UDRF01 04GB Maintenance manual DRF 400 450 2 ESchematics https www forkliftpdfmanuals com...
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