Bosch Rexroth PST 6 0 Series, Руководство по эксплуатации

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1070080029 / 05 Bosch Rexroth AG Electric Drives
and Controls PST 6xx0 | | 278 /330
Assembly
" The place of installation should be selected at the greatest possible
distance from current bus bars and high-current cables. This will re­
duce the noise resulting from external fields. Please also note the
cable specifications provided above.
"
Do not use any magnetizable metal parts for fastening the current
sensor but rather copper or brass.
"
Make sure that the current conductor is routed through the middle of
the sensor in the straightest line possible. The voltage induced in the
sensor (and thus the measured quantity) reaches its maximum if the
conductor runs vertically to the sensor level.
" If the sensor is used on mobile equipment, such as robots, certain
parts of the cable are subject to strong mechanical stress (e.g.
trailing cable).
In these cases, therefore, you should use suitable cables and design
the construction of the connecting lines so as to ensure a quick, trou­
ble-free replacement in the event of a fault.
" The cable shield should only be connected to the weld timer!
"
Make sure that the timer's complete control loop is readjusted in re­
gular intervals in order to avoid measuring errors (current calibra­
tion). An external reference welding ammeter is required for this
purpose.
ENGLISH