KEPCO BOP 5-20DL, Operator'S Manual

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BOP 5-20DL 081915
3-1
SECTION 3 - OPERATION
3.1 INTRODUCTION
BOP Bipolar Operational Power Supplies can be used in a great variety of applications. As a
precision voltage or current source, the BOP output can be controlled locally by means of the
front panel bipolar VOLTAGE and CURRENT controls or remotely by means of resistance or
voltage signals or an optional digital interface (see PAR. 3.42). Independently adjustable or
remotely programmable limit circuits for both output voltage and output current protect a sensi-
tive load from any overvoltage or overcurrent.
NOTE: Before using the BOP in any application, please refer to Section 2 to get acquainted
with the operating controls, a-c power requirements and information on load connec-
tions and grounding. Front panel components identified by index numbers in parenthe-
ses are shown in Figure 2-1.
3.2 POWER SUPPLY BASICS
As a Bipolar Amplifier, the BOP output responds to such input signals as sine, square or triangu-
lar waves. A ±10 volt input signal will program the BOP output (voltage or current) through its
rated output ranges. Built-in preamplifiers, for the voltage, as well as the current channel of the
BOP, permit amplification of the control signals to the required amplitude and provide the inter-
face with high, as well as low, impedance signal sources.
Detailed examples of the more popular applications are described in the following paragraphs.
Before actual operation, however, the following safety precautions must be carefully considered.
WARNING
Exercise care in making all connections to and from the BOP terminals.
Remove a-c power from the BOP before making any connections.
Wires and/or cables connected from the BOP terminals to external
components or programming devices must be properly insulated and
securely terminated on both sides to make accidental touch impossi-
ble. Do not use banana plugs with exposed screws or other exposed
metal parts at the front panel output terminals!
The BOP chassis and cover must be safety-grounded to a reliable a-c
source ground. A safety-ground may be established by using a
grounded a-c power outlet or, if the latter is not available, by means of a
separate wire from the provided GROUND terminal to a reliable a-c
source ground point.
The COMMON output terminal of the BOP can be either grounded or
floating, depending on the application. Additional precautions must be
taken to make any user access to the output terminals impossible.
!