Specifications

EXTERNAL ANALOG PROGRAMMING (OPTIONAL)
The external analog voltage can program the voltage and current outputs of the PD series. The outputs are
linearly proportioned to an external input voltage from 0 to 10Vdc. Setting these parameters via the front
panel or GPIB bus, VSET to 0V, ISET to a proper value for CV operation, or setting ISET to 0A and VSET
to a proper value for CC operation activates the external analog-programming mode.
To control the output voltage with the analog programming mode requires the following procedures; apply
the external 0 to 10Vdc source (Xv) between Pin-10 (positive) and Pin-12 (negative). These pins are
located at the rear I/O connector.
The output voltage is derived by the following equation:
Vout = x
v
V max
10
§
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¨
¨
·
¹
¸
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The output current is derived by the following equation:
Iout = x
v
axIm
10
§
©
¨
¨
·
¹
¸
¸
Variable Definition
Iout Current requirement
Xv External voltage
Imax Rated maximum output current
To control both voltage and current simultaneously in the external programming method requires that the
user apply two separately isolated 0 to 10Vdc supplies.
Variable Definition
Vout Voltage requirement
Xv External voltage
Vmax Rated maximum output voltage
To control the output current with the analog-programming mode requires the following procedure; apply
the external 0 to 10Vdc source (Xv) between Pin-11 (positive) and Pin-12 (negative). These pins are
located at the rear I/O connector.
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