Attachment and installation
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3 Attachment and installation
3.1 Requirements for the tractor
Before installing the control unit, check to make sure your tractor meets the fol-
lowing requirements:
Minimum voltage 11 V is essential at all times, even if multiple consumers are
connected simultaneously (e.g. air conditioner, lights).
The PTO speed can be set to 540 rpm and must be maintained (basic require-
ment for correct working width).
A 7-pin socket (DIN 9684-1/ISO 11786). The control unit receives the impulse
for the current ground speed through this socket.
3.2 Connections, sockets
3.2.1 Power supply
The control unit is supplied with power from the tractor via the 3-pin power supply
socket (DIN 9680/ISO 12369.
NOTICE
On tractors without load-switchable gears, the ground speed must be selected
by using the correct gear ratio in such a way that it corresponds to a PTO speed
of 540 r.p.m.
NOTICE
The 7-pin socket for the tractor and the ground speed sensor can be obtained
as an expansion kit (Option), see Figure 3.3
to Figure 3.5.
[1] PIN 1: is not required
[2] PIN 2: (15/30): +12 V
[3] PIN 3: (31): earth
Figure 3.1: PIN assignment of power socket
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