Section 1. Features and Specifications
Additional Characteristics
20 Operating Manual for XPD Series Power Supply
Additional Characteristics
Remote Programming and Monitoring
Over Temperature Protection (OTP) Unit latches off when T > rated maximum.
Auto restart when cool
OVP Control Adjustable on front panel single turn control.
110% setting 5% of rated output
Switching Frequency 125 kHz (250 kHz output ripple)
Output Hold-up Time 10 ms @120 Vac input
Insulation Resistance Input to chassis: >30 M ohm, with 500 Vdc
Output to chassis: >20 M ohm, with
1000 Vdc
Isolation Voltage Input to output: 1350 Vac
Remote S/D and Interlock
1
5–15 V signal or TTL-compatible output,
selectable logic. TTL input impedance: 2 k
(in series with one diode drop)
Remote Analog Programming (Full
Scale Input)
Voltage and current programming inputs
(source must be floating): 0-10 V voltage
sources.
Input impedance (V and I): 20 k
Remote Monitoring Output voltage and current: 0-10 V
Output impedance (V and I): approximately
221 ohm; output short circuit current:
approximately 20 mA (load must be floating)
Remote Programming and Monitoring
Accuracy
1% of full scale output for the default range
Maximum Remote Sense Line Drop
Compensation
7.5 V model: 3 V/line;
2
18-120 V models: 5 V/line
2
Optional Digital Control RS-232, GPIB interfaces
1. Isolated from power supply output and chassis to 500 V.
2. Line drop must be deduced from supply maximum output.