KEPCO BOP-MG 1KW, Operator'S Manual

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BOP HIPWR 111315
1.6.5 EXTERNAL REFERENCE (ANALOG CONTROL)
An external reference, provided through the rear analog port connector (see Table 2-10), can be
used to control the output of the BOP. The external reference may be applied directly or can be
attenuated by the digital controls (see PAR. 3.4.3.2). The BOP will limit its output based on the
user configurable limits so that, in the event of a failure in the external reference, the devices
connected to the output are protected. Refer to PAR. 3.4 for further details on using external sig-
nals to control the output.
1.6.6 EXTERNAL LIMITS
When the unit is controlled by an external reference, the protection limits can also be controlled
by analog signals that are digitally calibrated. The BOP samples the limit channel inputs and
applies the proper limit levels at a 5 mS rate with the positive and negative limits being sampled
alternately. The external limit inputs are hardware-protected against overvoltage. Refer to PAR.
3.4.4
1.6.7 USER-DEFINED VOLTAGE/CURRENT MAXIMUM VALUES (SOFTWARE LIMITS)
The BOP output can be programmed not to exceed user-defined values. For example, the BOP
36-28MG, which has a maximum capacity of ±36V, ±28A, can be limited to +30V, –10V, +5A, -
1A for working with circuitry that might be damaged by higher levels. Once the limits are set, val-
ues exceeding the limit values will not be accepted, including external references and protection
limits. Refer to PAR. 3.3.4.1.
1.6.8 PARALLEL AND SERIES CONFIGURATIONS
Identical BOP units may be configured in series, parallel or parallel-series (2 X 2 or 3 X 2) con-
figurations. The 2 X 2 configurations doubles both output voltage and output current, the 3 X 2
configuration triples the output voltage and doubles the output current. If a series/parallel config-
uration is enabled, communication between the master BOP and those configured as slave
units occurs via the BITBUS. Refer to PAR. 2.8 for further details.
1.6.9 ENERGY RECUPERATION
The BOP is a four-quadrant device as shown in Figure 1-3. Operating as a source, it delivers
energy into a passive load, and as a sink it operates as an electronic load, absorbing and dissi-
pating energy from an active load. To minimize energy dissipation, the BOP employs energy
recuperation, where energy sinked from an active load is passed backwards through the output
circuit and the bidirectional input power factor correcting circuit to the a-c power lines, where it
becomes available for reuse. This technology allows high power levels using switch-mode tech-
nology while maintaining high efficiency and reduced size and weight.
1.7 EQUIPMENT SUPPLIED
Equipment supplied with the BOP power supply is listed in Table 1-3.
TABLE 1-3. EQUIPMENT SUPPLIED
ITEM FUNCTION
PART NUMBER
Source Power Entry mating connector Mates with source power entry connector 142-0381 (Kepco) (IEC 320)
PAR/SER CONTROL - IN
mating connector Mates with PAR/SER CONTROL - IN port to allow
access to pins required for calibration 142-0488 (Kepco)