Kepco HSP Series Operator Manual Uživatelský manuál stáhnout pdf (Strana 11)

HSPSERIES OPR 050614 1-5

1.4 MISCELLANEOUS FEATURES

1.4.1 CONTROL/PROGRAMMING

a) VOLTAGE CHANNEL: Output voltage is controlled continuously throughout the specified

adjustment range via a 10-turn potentiometer mounted behind the front panel. 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 mounted behind the front panel. 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 INDICATORS/FLAGS

a) STATUS INDICATORS: Four LED indicators at the front panel provide the following opera-

tional information (see PAR. 3.14):

• POWER: Green; lit when source voltage is above minimum required to support rated

load.

• DCFAIL: Red; lit when output voltage is beyond regulation limits or when load current is

below minimum load sharing requirement.

• OVERTEMP: Amber; lit when internal overtemperature protection is activated.

• FANFAIL: Red; lit when internal cooling fan failure is detected.

b) 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 both at the front panel test points (V

and I

MAX

)

and 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

HSP (or HSM) series 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

HSP power supply (see PAR. 3.13).

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Kepco HSP Series Operator Manual Uživatelský manuál Strana 11