KEPCO MAT 1/3 Rack - Manual (Page 22)

MAT 1/3 RACK/ 112404 2-5
2.4 AC INPUT REQUIREMENT
These Power Modules operate on a single phase, 115 Va-c nominal line. The Power Module
can also be connected to 230 Va-c by the following procedure:
1. Disconnect the AC Input power from the RA 50 or RA 51 rack adapter
Turn OFF the circuit breaker on the module (if operating).
2. Remove the MAT Power Module from the RA 50 or RA 51 Rack Adapter by loosening two
slotted captive screws at the top of the MAT front panel, then locate the barrier terminal
block mounted on the chassis.
NOTE: Do not move the wires connected to the barrier strip, they are properly placed for both
115 Va-c and 230 Va-c operation.
3. Figure 2-3A shows the barrier terminal block set to 115 Va-c operation. Remove the jump-
ers on the barrier strip connecting terminals 2 to 3, and terminals 4 to 5.
4. Place a jumper between terminals 3 and 4. For 230 Va-c the barrier strip appears as in Fig-
ure 2-3B.
5. Verify that the source voltage on the Rack Adapter matches that of the Power Module.
6. Return the Module to the Rack Adapter
NOTE: To return to 115 Va-c operation reverse the procedure. Remove the jumper in step 4 and
replace the jumpers in step 3.
TABLE 2-6. DC OUTPUT CONNECTOR PIN DESIGNATIONS
CONNECTOR PIN
(See Figure 2-2)
FUNCTION
H CONNECTED TO OUTPUT TERMINAL 1
I CONNECTED TO OUTPUT TERMINAL 2
A CONNECTED TO SENSE TERMINAL 1
E CONNECTED TO SENSE TERMINAL 2
D CONNECTED TO SAFETY GROUND