Instructions

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CHAPTER 10: ISOLATED ANALOG PROGRAMMING OPTION
10.1 Introduction
Isolated Analog Programming is an internal option card for analog programming of the Z
+
Power
Supply series. The option is factory installed and cannot be obtained with GPIB (IEEE) Interface.
Output Voltage and Current Limit can be programmed and readback through optically isolated
signals which are isolated from all other ground references in the power supply.
There are two types of Isolated Analog programming cards:
1. 0-5V/0-10V option (PN: IS510): Using 0-5V or 0-10V signals for programming and readback.
2. 4-20mA option (PN: IS420): Using current signals for programming and readback.
10.2 Specifications
10.2.1 0-5V/0-10V Option (PN: IS510)
Programming
Inputs
Output voltage programming accuracy % +/-1
Output current programming accuracy % +/-1
Output voltage programming temperature coefficient PPM/ C +/-100
Output current programming temperature coefficient PPM/ C +/-100
Input impedance Ohm 1M
Absolute maximum voltage Vdc 0-15
Max. voltage between program inputs and supply outputs Vdc 400
Monitoring
Outputs
Output voltage monitoring accuracy % +/-1.5
Output current monitoring accuracy % +/-1.5
Output Impedance (see note) Ohm 100
Max. voltage between monitoring outputs and supply outputs Vdc 400
NOTE:
Use 100Kohm minimum input impedance for the monitoring circuits to minimize the readback error.
10.2.2 4-20mA Option (PN: IS420)
Programming
Inputs
Output voltage programming accuracy % +/-1
Output current programming accuracy % +/-1
Output voltage programming temperature coefficient PPM/ C +/-200
Output current programming temperature coefficient PPM/ C +/-200
Input impedance Ohm 50
Absolute maximum input current mA 0-30
Max. voltage between program inputs and supply outputs Vdc 400
Monitoring
Outputs
Output voltage monitoring accuracy % +/-1.5
Output current monitoring accuracy % +/-1.5
Maximum load impedance Ohm 500
Max. voltage between monitoring outputs and supply outputs Vdc 400