Operating Instructions

Electrical installation, cable connection, cable cover
104 / 140 DLT-V72 Operating Instructions V2.50 Preliminary
NOTICE: Physical damage
Observe the potential ratios.
On the DLT-V72, the logic ground and the shield ground are firmly connected to each other.
Logic ground is the ground (GND) used to supply the internal parts and components such as the
display or CPU. All cable shields and the housing are connected to shield ground.
The chassis of some forklifts is on DC+. This means that the DLT-V72 chassis is also on DC+.
Short circuits can arise when, for example, the ground potential of a peripheral device is on DC-.
This may cause malfunctions or irreparable damage to the DLT-V72.
 Always attach ring tongue of the supply voltage cable to the provided ground bolt situated
on the connector panel.
 The other end of the yellow-green power supply cable must be connected to the vehicle’s
chassis.
 Connect the power supply cable of the DLT-V72 as directly as possible to the battery and
not to power supply lines with a great deal of interference (e.g. the engine power supply) or
otherwise affected by consumers.
 Connecting the DLT-V72 to large electrical loads, such as converters for the forklift motor
may result in random restarts, malfunctions and/or irreparable damage to the device.
 If you want to connect devices fed by other power sources to the DLT-V72 (e.g. printers),
be sure to power up the peripheral devices at the same time or after the DLT-V72;
otherwise, you may encounter start-up problems, malfunctions or even irreparable damage
to the device.
12.3.1. Plugging in and screwing on the power supply cable
Fig. 12.2: The power supply cable secured, cable inserted in rubber seal
 Plug the power supply cable into the power
supply plug-in location.
 Screw both mounting screws hand-tight.
 Fold open the round cable passage in the
rubber seal.
 Insert the power supply cable.