Terms & definitions from A-Z

Here you will find explanations and definitions for the most important terms used in the technical documentation. The Heinzinger ABC.

 

 

 

Ambient temperature:
Technical data is specified for this temperature range.

Analog Interface:
Enables remote control of the power supplies by means of a 0…10V analog signal (other versions, e.g. 4…20mA optional) or by directly connecting a potentiometer, display units, PCs with D/A converters or SPS-controls etc. This interface is standard for most Heinzinger power supply versions. Voltage isolated versions are optional.

Battery Characteristic:
Adjustable power supply source resistance. For simulation of power supplies providing source resistance (batteries, fuel cells etc.). If current is provided, using this operation mode, the power supply reduces the rated voltage exactly by the factor ΔU=Ri * Iset (ΔU=difference between the provided and the rated voltage; Ri=selected source resistance; Irated=provided output current). In contrast to a “real” battery, absolutely reproducible and exact values, even in continuous operation are possible.

Calibration:
Check output data with specifications, based on national calibration standards. We are pleased to offer on request calibration of our power supplies. New systems can be supplied with a certificate of calibration. We also regularly offer manufacturer calibrations as part of our service and maintenance contracts.

CC-Mode:
Constant current mode, operation of power supply as constant current source.

Current Control, Current Regulation: see CC-mode.

Current Source: see CC-mode

Current Stabilization:
Specifies the technical performance for the CC- mode.

CV-Mode:
Constant voltage mode, operation of power supply as constant voltage source.

Digital Interface:
Optional interface which allows control by means of digital interfaces (e.g. RS232, RS485, IEEE488 and others). Optionally available or accessory for all Heinzinger power supplies.

Discharge Time:
Specifies the time which is necessary for the voltage of an unloaded output to drop below 50V (or <1% for HV systems).

Double Stabilized Power Supply:
Linear, transistor controlled power supply with pre-stabilization.

Electronic Common:
Ground reference of the internal system circuit

Floating:
Isolated setup without connection to earth. The max. voltage difference is specified.

hp, High Precision Power Supply:
Heinzinger power supplies with extended performance (<0.001%). Recommended for high precision applications.

HV, High Voltage:
Heinzinger high voltage power supplies are available for voltages up to >300,000V.

IEEE488:
see „Digital Interface“.

Interlock:
Internal Interlock, cuts output at internal malfunction. Via an external interlock, the unit can be e.g. integrated into an existing switching-off loop. A fast unload switch is also possible as an option.

Line-regulation:
Control of mains output variations, specifies the output voltage variation for a defined variation of the mains supply.

Linear Controlled Power Supply:
Transistor or SCR controlled power supply.

Load Regulation, Load Control:
Output stabilization, defines the max. variation of the output for a defined load variation.

Master Slave Operation Mode:
Master slave operation mode of two connected power supplies. Automatic reaction of the slave system to variations of the master system. Available for most of the Heinzinger power supplies in conjunction with the analog interface and a dedicated connection cable.

NC:
Specifies contacts which are closed as default position. Operating the contact causes interruption of the circuit. Used for example in safety loops.

NO:
Specifies contacts which are open as default position. Operating the contact causes closing of the circuit.

Output Reference Level:
Reference level of the output voltage. Many Heinzinger power supplies provide floating reference levels up to a defined voltage.

Output Terminals, Output Connection:
Clamp terminal connections resp. plugs, specified for the rated voltage and current of the power supply. If necessary, touch-safe versions are provided.

Parallel Connection:
Parallel wiring of power supplies to increase the available current. Using parallel connection, the total available current is the total of all connected supplies.

Polarity:
Output polarity related to the common ground of the control circuit. This ground is always connected to one of the two output terminals (at HV power supplies the common ground is connected to earth).

Polarity Reversion:
For various power supplies, a mechanical or electrical change of the output polarity can be provided (option). It is a standard option for all PNC series systems, for other systems on request.

Power Control:
Provides power setting and control by means of a 10-turn potentiometer (option: via interface). Option available for many Heinzinger power supplies.

Rated Current:
Max. achievable output current of the power supply. All technical data are related to the rated values of the individual system type.

Rated power:
Max. available output power of the power supply.

Rated Voltage:
Max. achievable output voltage of the power supply. All technical data are related to the rated values of the individual system type.

Remote Control: see analog interface

Reproducibility:
Defines the accuracy with which a onetime set value can be achieved at a later time (under identical conditions).

Resistive Characteristic:see battery characteristic

Response Time:
Required time to settle the rated voltage or current after a defined load variation.

Ripple:
Residual ripple. Amount of AC superposed to the DC output. Peak-to-peak metering on resistive load.

RS232: see digital interface.

RS485: see digital interface.

Sense:
Sensor terminals for compensation of voltage drops on the load line. Provided for precise voltage monitoring directly at the connected load.

Sense Input Connector: see “sense”

Serial Connection:
Serial wiring of power supplies to increase the output voltage. Using serial connection, the total available voltage is the total of all connected power supplies.

Setup Accuracy:
Setup resolution, min. available resolution for setup (generally for setup by means of a potentiometer).

Setup Range:
Adjustment range of the output value.

Setup Resolution:see setup accuracy

Stability:
Max. deviation of the output values for a specified time period.

Switch-Mode-Power Supplies:
Switched power supply, control by means of pulse-width modulation.

Temperature Coefficient:
States the deviation in output values for changes in the environmental temperature, if all other values are kept unchanged.

Temperature Range: see ambient temperature.

Tracking Operation:see Master-Slave operation mode

up to >:
The given value ist the maximum for standard systems, larger values are upon request.

Voltage Control, Voltage regulation: see CV mode.

Voltage separation:
Galvanic isolation of the analog interface from the control circuit and from the output of the power supply.

Voltage Source: see CV-mode

Voltage Stabilization:
Provides the technical data for CV-mode of operation.

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