AMETEK SGI Series - Manual (Page 30)

Installation Sorensen SGI Series
2-8 M550221-01 Rev AA
2.4 Input/Output Connections
Refer to Table 2 –1 for AC input current requirements and Section 1.2.3 for
output current specifications. Table 2
–3 provides information on the external
input and output connections for the SGI Series models. Table 2 –4 provides
input connections descriptions and Table 2 –5 provides output connection
descriptions. Refer to Table 2 –6 for input/output lug recommendations. The
recommended tools for crimping and extraction of the sense connector pins
are listed below in Table 2
–7.
WARNING!
High voltage present at rear panel! Risk of electrical shock. Do not remove
protective covers on AC input or DC output. Refer to qualified service personnel.
WARNING!
The input and output voltages at the rear panel of the unit might be HAZARDOUS
LIVE. When rack-mounting or panel-mounting the unit, suitable safeguards must
be taken by the installer to ensure that HAZARDOUS LIVE voltages are not
OPERATOR accessible. OPERATOR access should only be to the front panel of
the unit.
WARNING!
A safety disconnect device for the AC mains input must be installed so that it is
readily accessible to the user
WARNING!
A properly sized input overcurrent protection device must be installed at the AC
mains input, either a circuit breaker or fuse having a rating of 25% over the
maximum AC input line currents listed in Table 2
–1.
WARNING!
To prevent an electrical shock hazard, a safety ground wire must be connected
from the safety ground stud on the rear panel to the AC mains ground.
CAUTION!
Under no condition should the negative output terminal exceed 300V to earth
ground. Floating the negative output terminal subjects the internal control circuitry
of the power supply to the same potential as present at the negative output
terminal. In a unit with the standard Non-Isolated Analog Interface, the signals of
control connector, J1, would float at the same potential as the negative output
terminal. Damage might occur if the signals of the Non-Isolated Analog control
connector are connected to an external ground referenced device, due to
unintentional ground loop currents that this connection could generate. To correct
ground loop problems, it is advised to use the optional Isolated Analog Interface in
order to isolate the external signals from the internal control circuitry of the supply.
Refer to Section 1.2.2 of the specifications for additional information.