KEPCO KLN Series (750W, 1500W, 3000W), Main Contro Firmware Version 1.70 and higher - Manual (Page 76)

3-30
KLN Series 051614
3.5.3 REMOTE CONTROL OF OUTPUT VOLTAGE USING AN ANALOG SIGNAL
Connect an analog voltage, adjustable from 0 to +10V d-c (corresponding to 0 to rated output
voltage) between pin 16 (+) and pin 26 (–) of the Programming Control Port. The analog voltage
will control the output only after the function is enabled by setting Constant Voltage control to
EXT from the front panel (see PAR. 3.3.39).
CAUTION: TO AVOID OVP TRIPPING WHEN THE OUTPUT IS SET TO ON, THE ANALOG
PROGRAMMING VOLTAGE MUST NOT EXCEED 10.5V D-C.
3.5.4 REMOTE CONTROL OF OUTPUT CURRENT USING AN ANALOG SIGNAL
Connect an analog voltage, adjustable from 0 to +10V d-c (corresponding to 0 to rated output
current) between pin 18 (+) and pin 26 (–) of the Programming Control Port. The analog voltage
will control the output only after the function is enabled by setting Constant Current control to
EXT from the front panel (see PAR. 3.3.40).
CAUTION: TO AVOID OCP TRIPPING WHEN THE OUTPUT IS SET TO ON, THE ANALOG
PROGRAMMING VOLTAGE MUST NOT EXCEED 10.5V D-C.
3.5.5 RECALLING PREVIOUSLY STORED SETTING USING PROGRAMMING CONTROL PORT
Connect a switch or relay (dry contactor) across pins 1 and 2 of the Programming Control Port.
Each time the pins are shorted together is equivalent to pressing the RCL key (see PAR. 3.3.7).
Closures of the switch or relay can be used to select the desired memory cell.
3.5.6 MONITORING OUTPUT STATUS USING PROGRAMMING CONTROL PORT
The Programming Control port allows monitoring of output voltage and current, operating mode
(CC or CV), power on/off, output on/off and alarm status (occurrence of OVP, OCP, or output
shutdown).
3.5.6.1 MONITOR OUTPUT VOLTAGE OR CURRENT
CAUTION: DO NOT ALLOW SHORT BETWEEN PROGRAMMING CONTROL PORT PINS
20 (A MONITOR), 22 (V MONITOR) OR 24 (ANALOG COMMON) TO AVOID
DAMAGE TO THE UNIT.
Voltage: The analog voltage between 0 to +10V d-c at pin 20, referenced to pin 24, represents 0
to the rated voltage of the unit. Accurate within 5% of Voltage display reading. Output resis-
tance: approximately 100 Ohms, maximum output current: approximately 10mA.
Current: The analog voltage between 0 to +10V d-c at pin 22, referenced to pin 24, represents 0
to the rated current of the unit. Accurate within 5% of Current display reading. Output resis-
tance: approximately 100 Ohms, maximum output current: approximately 10mA.
!
!