2-6
MST-MHT SERIES 071320
CAUTION
When inserting a Module into a Rack Adapter under power, the Module POWER switch
must be placed in the OFF position prior to insertion.
3.
Align slots of the Module with the guides of the Rack Adapter and insert Module into Rack
Adapter slot. Secure with the two thumb screws (maximum torque applied to thumb screws
is 10 foot-lbs).
2.5.3
REMOVAL
To remove the Power Module from the RA 55H Rack Adapter or CA 400H case, proceed as fol-
lows:
CAUTION
When removing a Module from a Rack Adapter under power, the Module POWER switch
must be placed in the OFF position prior to extraction.
1.
Loosen the two slotted captive thumb screws that hold the Module in place in the Rack
Adapter until they disengage from the Rack Adapter.
2.
Extract the module from the Rack Adapter using the front panel handle.
2.6
GROUNDING
Interconnections linking a stabilized Power Module to an a-c power source and a load are criti-
cal for both performance considerations and safety requirements. For optimum performance
certain rules must be observed. These rules are described in detail in the following paragraphs.
2.6.1
SAFETY GROUNDING
National and international safety standards set procedures for the grounding of a metal cover
and chassis of an instrument connected to an a-c power source.
When properly installed in the RA 55H Rack Adapter, the Power Module chassis is connected to
the RA 55H safety ground terminal via the GROUND pins of the AC/Control Bus connector (Fig-
ure 2-6). For operation of the MST-MHT Power Module outside the RA 55H Rack Adapter, con-
sult Kepco Applications Engineering for assistance.
RA 55H RACK ADAPTER MUST ALWAYS BE GROUNDED WHEN CONNECTED TO AN A-C
POWER SOURCE.
2.6.2
D-C (OUTPUT) GROUNDING
D-C output connections are those between the Power Module and the load, including remote
sensing connections. Despite precautions to eliminate noise such as shielding and twisted wire-
pairs, output connections may pick up radiated noise of a wide frequency. To minimize such
undesired effects, one side of the Power Module output/load may be grounded. Pin 4 of the DC
WARNING
Содержание MST 100-2MHT
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