JQE SPECIAL SVC 092611
3-1
SECTION 3 - OPERATION
3.1
STANDARD POWER SUPPLY OPERATION, LOCAL CONTROL
3.1.1
GENERAL
The Power Supply is shipped from the factory with five (5) removable jumper links in place at
the rear barrier strip TB501 as shown in FIG. 3-1, THESE LINKS MUST BE IN PLACE AND
SECURED TIGHTLY for standard local operation. Loose terminal links or wires at the barrier
strip will cause malfunction of the power supply.
3.2
LOAD CONNECTION
The load may be connected in either of the two ways illustrated (Figure 3-1).
3.2.1
LOCAL ERROR SENSING (SEE FIGURE 3-1A.)
This type of load connection is recommended for constant load applications. Install the links
between terminals (1) and (2) and between terminals (3) and (4) of TB501 at the rear panel.
Load connecting wires should be as heavy as practicable, since load wire voltage drops will
degrade regulation performance, hence the recommendation for constant load applications.
Twisting of load wires will help to preserve the low output impedance as well as reduce the cou-
pled and radiated noise of the power supply.
FIGURE 3-1. LOAD CONNECTION SHOWING A FLOATING LOAD
LOAD CONNECTION,
DEFAULT JUMPER LINKS INSTALLED,
WITHOUT REMOTE ERROR SENSING
LOAD CONNECTION
WITH REMOTE ERROR SENSING
(KELVIN CONNECTION)
TWISTED
PAIR
-OUTPUT
+OUTPUT
+OUTPUT
-OUTPUT
TWISTED
PAIR
#22 AWG
TWISTED
PAIR
