DS4 C
HAPTER
2 - I
NSTALLATION
2-13
Check and record the Main DC Bus Voltage output at
(+) with respect to (-) on the PSR4/5 terminal block
according to Section 2.1. Check and record the
unregulated DC voltage levels at Connector C3 of the
PSR4/5. They should be ± 17 to 26.5 and + 9 to 14.5
VDC per Section 2.7.5.
Remove power.
Note the model number of the PSR4/5 and refer to
Section 2.1 to confirm DC voltage levels.
If the voltage levels are within the specifications
listed in Appendix D, proceed.
WAIT FOR THE BUS TO BLEED DOWN and
reconnect the B(+) and B(-) leads to the power
terminal block of the PSR4/5. Be careful to
reconnect the leads with the proper polarity. Re-
install Connector C2 on the PSR4/5.
CAUTION
Failure to observe correct
polarity will result in damage
to the PSR4/5 and BDS4.
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