GMC-I Messtechnik GmbH
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Technical Description
Description
SYSKON KONSTANTERs (power factor control, single-output
system power supplies) are manual and remote controllable DC
power supplies for laboratory and system use. Thanks to modern
switching controller technology, the devices are compact and
lightweight despite high output power.
Active power factor control assures nearly sinusoidal mains input
current.
The floating output features “safety separation” from the mains
input as well as from the computer interfaces, and is classified as
a safety extra-low voltage circuit (SELV) in accordance with VDE /
IEC. Wide ranging nominal output power values are available from
output voltage and output current.
The power output is voltage and current controlled with limiting to
maximum withdrawable power.
Transition to the control modes is automatic in accordance with
the selected setpoints and load circumstances.
The control loops are designed for short response times.
An automatically activated, dynamic sink (can be disabled)
provides for quick discharging of the output capacitors.
Numerous protective functions and monitoring devices allow for
ideal adaptation to actual conditions of use.
Features
The devices are generally equipped with a control panel and
display, as well as an analog interface.
One USB port and one RS 232 interface are provided as standard
equipment for integration into computer controlled systems. The
drivers for the USB port are provided as accessories on the
included CD ROM.
An IEEE 488 interface can be additionally installed to the device
from the outside ,or retrofitted as an option.
Manual adjustment of voltage and current is accomplished by
means of two rotary encoders with selectable resolution, or with
the numeric keypad. Numerous additional functions can be
accessed via keys.
Two 5-place digital LED displays read out measured values and
settings. LEDs indicate the current operating mode, selected dis-
play parameters and the status of device and interface functions.
The analog interface makes it possible to adjust output voltage
and current with the help of external control voltages. Monitor
outputs read out an analog image of the voltage and current
output quantities for further processing or additional displays.
These control inputs and monitor outputs can also be used to
couple several devices for master-slave operation with parallel or
series connection.
Two floating trigger inputs are available for controlling certain
device functions. For example, they can be used to switch the
output on and off, or to control sequences.
Furthermore, three signal outputs are included at the analog inter-
face, two of which are floating. These can be activated depending
upon various functions, and can thus be used to control external
devices or sequences.
Applications Range
Konstanters are suitable for use wherever electronic modules with
controlled direct voltage or controlled current need to be supplied
with electrical power, especially in the fields of R&D, testing,
production, test systems and training.
Thanks to their characteristic U-I-P curve, the devices have a
broad working range, making it possible to cover a large range of
applications with a single device.
Due to their short response times, SYSKON KONSTANTERs can
be used for replication and simulation of onboard electrical sys-
tems, for example in automotive applications. Test signals speci-
fied in the corresponding standards can be generated. The fact
that these voltage-current-time profiles can be saved to memory
at the Konstanter for running independent sequences is highly
advantageous. When used in test systems, it is thus possible to
significantly reduce workload for the control computer. Further
functions for test applications of this sort include the Min-Max
function for acquiring extreme values and the tolerance band
function which generates a signal when measured values do not
lie within the specified tolerance limits.
The Konstanter thus serves as an autonomous test system for
many applications.
Adjustable Functions (selection)
– Voltage and current setpoint values
– Voltage and current limit values (soft-limits)
– Activate / deactivate the output
– Overvoltage protection trigger value (OVP)
– Overcurrent protection trigger value (OCP)
– Delay time for reaction to overvoltage
– Selection of the desired reaction when OVP and OCP are
triggered
– Delay time for reaction to overcurrent
– Performance after power on
– Reset device settings
– Save device settings
– Recall device settings, individually or sequentially
– Function selection for trigger input
– Configurable status and events management
with enabling windows (via computer interface)
– Activate / deactivate digital displays
Retrievable Information (selection)
– Presently measured voltage and current values
– Minimum and maximum measured voltage and current values
– Current output power
– Current device settings
– Current device status (i.e. control mode, overtemperature etc.)
– Occurred events (i.e. mains failure, overtemperature,
overvoltage, overload etc.)
– Device ID (via computer interface)
Protection and Additional Functions
– Sensor terminals protected against polarity reversal and
automatic switching to auto-sensing
– Protection against excessive temperature
– Output protected against reverse polarity
– Front panel control disabling
– Backup battery for device settings memory
– Recognition of mains or phase failure
– Inrush current limiting
Summary of Contents for P1500
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