Electric Drives
and Controls
1-7Bosch Rexroth AGPSI 6500.xxx1070087059 / 02
Safety Instructions
CAUTION
Short circuits! When cut-outs are drilled or sawed in switchgear
cubicles, metal burr may get into modules already installed there.
Or, when cooling water lines are connected, water may leak into
the modules installed. The possibility of short circuits occurring
in the process or even the destruction of the devices cannot be
entirely ruled out.
Therefore, guard any existing modules well before you install a
new module! Any and all warranty excluded in case of non-com-
pliance.
CAUTION
Heat accumulation! Modules must be mounted with a minimum
clearance of 100 mm on top and at the bottom. Without this mini-
mum clearance, heat may accumulate and cause inverter failure.
CAUTION
Leaks in the cooling water circuit may cause consequential da-
mage! Cooling water leaks may damage adjacent components.
Therefore, when mounting water-cooled modules, always ensure
that other devices in the switchgear cabinet are well protected
against leaking cooling water.
CAUTION
Damage to property through insufficient water quality in the pos-
sibly required cooling water circuit! Deposits in the cooling sy-
stem may reduce the water flow, thus impairing the performance
of the cooling system with time. Therefore, you should ensure that
your cooling water has the following properties:
D pH value :7 to 8.5
D Degree of hardness D
max
: 10 German degrees =
12.5 British degrees =
10.5 US degrees =
18 French degrees)
D Chlorides : max. 20 mg/l
D Nitrates : max. 10 mg/l
D Sulfates : max. 100 mg/l
D Insoluble substances : max. 250 mg/l
Tap water usually meets these requirements. However, an algicide
should be added.
L For information about dimensions and installation accessories of the
product as a whole as well as information about the cooling system,
please refer to the manuals of the power supply units (see page 1-1).
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