I.B. 29C892B

 

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Figure 2-4 OPTIMizer Battery Compartment with Battery Installed

2.If none of the pushbuttons on the operator panel are used for approximately 2 1/2 minutes, the program- mer turns itself off. This includes the performance of a non-trip test. External power is required to perform a trip test. Refer to the next paragraph for external power details.

2-2.2 EXTERNAL CONNECTIONS

Three receptacles are provided on the top of the device, one for an external power connection and two different means for connecting the programmer to the trip unit (Figure 2-2).

External Power Connection

Use external power to:

•Save internal battery power

•Perform trip test on circuit breaker

•Communicate over INCOM

External power is provided by connecting an Auxiliary Power Module (Catalog Number PRTAAPM) to the OPTIMizer through the 2-pin male receptacle. The Auxiliary Power Module requires a 120 Vac 50/60 Hz input and delivers a 32 Vdc 4 VA output (Figures 2-2and 2-5). Note that OPTIM trip units with external power connections (K, L and N) operate from a 24 Vdc power source.

Figure 2-5 Auxiliary Power Module Shown Connected to OPTIMizer

Direct Breaker Connection

The first method for connecting the hand held programmer to the trip unit is by means of the 8 conductor custom phone cord provided with the programmer. One end plugs into the front panel of the trip unit and the other end into a custom phone jack port (HDR1) on the top of the programmer. This direct connection is intended only for use with the hand held programmer, and is normally associated with the direct programming of individual trip units (Figures 1-1,2-2and 2-6).

Network Connection

The second means for connecting the hand held programmer is through the 3-pin male connector (J2) located on the top of the programmer. This connection is made through an INCOM shielded twisted-pair. The hand held programmer has an internal INCOM transformer permitting it to communicate over the network. This is the method normally associated with network programming (Figure 2 - 2). Auxiliary power to the OPTIMizer is required to communicate over the INCOM network.

Notice: A direct connection will override an INCOM connection. This will also signal a no response alarm on other network devices.

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