KEPCO HSM Series - Manual (Page 11)

HSMSERIES OPR 052912
1-5
1.4 MISCELLANEOUS FEATURES
1.4.1 CONTROL/PROGRAMMING a)VOLTAGE CHANNEL: Output voltage is controlled continu-
ously throughout the specified adjustment range via a 10-turn potentiometer accessed
through the top cover. External control can be exercised either by resistance or by control
voltage (see PAR.s 3.3 and 3.4).
b) CURRENT CHANNEL: Output current is controlled continuously throughout the specified
adjustment range via a 10-turn potentiometer accessed through the top cover. External
control can be exercised by control voltage (see PAR.s 3.5 and 3.6).
c) OVERVOLTAGE LEVEL: The output voltage level at which the overvoltage protection
latch is activated may be adjusted locally via a 10-turn potentiometer accessed through the
top cover (see PAR. 3.8).
d) REMOTE INHIBIT: Operation of the output regulator can be inhibited remotely via either
one of two TTL-level control lines, RC1 and RC2. Both of these signals are isolated from
both the input and output, allowing single-point control of several power supplies operating
at different potentials. Both positive and negative logic are supported (see PAR. 3.12).
1.4.2 STATUS FLAGS: Four sets of Form C dry relay contacts (3 wires each) are provided at the I/O
connector which duplicate the front panel status indicator functions (see PAR. 3.14).
1.4.3 SETPOINT MONITORS: Analog voltage signals which display programmed output voltage and
current limit values. These signals are available at the I/O connector (VSET and ISET). Signals
are referenced to negative error sense (see PAR. 3.7).
1.4.4 REMOTE ERROR SENSING: Separate voltage sensing connections permit 4-wire connection
to load. Will compensate for static load effects due to power lead d-c resistance (DCR) up to
specified maximum voltage drop per load lead at maximum specified output voltage (see PAR.
3.2).
1.4.5 LOAD SHARING: Bidirectional control port provides forced load sharing between two or more
power supplies wired in parallel (see PAR. 2.7.6).
1.4.6 LOAD MONITOR: Analog voltage signal which indicates actual load current delivered by the
power supply (see PAR. 3.13).
1.4.7 AUXILIARY SUPPLY: Logic-level secondary output provides up to 0.5 watts of power at 5V
d-c. This output is isolated from the output and is unaffected by the status of the main output.
Provides power for external Remote Inhibit controls (see PAR. 3.11).
1.4.8 OVERCURRENT/UNDERVOLTAGE PROTECTION: Switch-selectable option provides the
user load protection against long-term output overloads or undervoltage conditions (see PAR.
3.9).
1.4.9 CURRENT WALK-IN: Switch-selectable option provides control of output current rise rate
based on Bellcore TR-TSY-000947 requirements for battery chargers (see PAR. 3.10).
1.4.10 REMOTE RESET: Switch-selectable option provides capability to reset the latch used by the
overvoltage protection circuitry to disable the output regulator, using the Remote Inhibit control
lines (see PAR. 3.12).