Parker PHD28, User Manual, Page: 7 / 157

User Guide vii
Safety
Do not use the product if electronic modules, cabling, or connectors are
damaged or if the control system shows error functions.
Electronic control systems in an inappropriate installation and in
combination with strong electromagnetic interference fields can, in
extreme cases, cause an unintentional change of speed of the output
function.
Welding after installation
Complete as much as possible of the welding work on the chassis before the
installation of the system. If welding has to be done afterwards, proceed as
follows:
Do not place the welding unit cables near the electrical wires of the
control system.
1. Disconnect the electrical connections between the system and external
equipment.
2. Disconnect the negative cable from the battery.
3. Disconnect the positive cable from the battery.
4. Connect the welder's ground wire as close as possible to the place of the
welding.
Construction regulations
The vehicle must be equipped with an emergency stop which disconnects the
supply voltage to the control system's electrical units. The emergency stop must
be easily accessible to the operator. If possible, the machine must be built so that
the supply voltage to the control system's electrical units is disconnected when the
operator leaves the operator’s station.
Safety during installation
Incorrectly positioned or mounted cabling can be influenced by radio
signals, which can interfere with the functions of the system.