VT7101

Power Supply Module

The power supply module VT7101 is a 60 V capabable version of the VT7001A. It can be used to control up to 2 power supply inputs of an ECU (e.g. terminals 15 and 30). As an alternative, 2 ECUs may be supplied separately, e.g. for testing differences in voltage supplies.

Power supply module: VT7101

Characteristics:
VT7101

Module Features

  • 2 external power supplies can be connected
  • Internal power supply generates voltage for the ECU from the VT System power supply
  • 2 external and 1 internal power supplies may be connected to the 2 outputs to the ECU in various combinations
  • Ground lines of outputs can be interrupted (line break of terminal 31)
  • Relays for producing short circuits between the output lines
  • Measurement of output currents over a very wide range
  • Measurement of input and output voltages
  • Control of two external power supplies via control voltage or via electrically decoupled serial interfaces
  • Generation of arbitrary control voltage curve
  • Serial interface for driving an external display
  • Hardware synchronization with Vector network interfaces
  • The module supplies ground and battery voltage to the bus bars at additional pins
VT7101: detail view

Technical Data

VT7101
  Input voltage -60 … +60 V 
Current carrying capacity (at 0 … 35 °C)
  One channel Max. 70 A
  Both channels in sum Max. 100 A
Internal power supply
  Output voltage 3 … 59 V
  Accuracy (at 25 °C, 0.5 A) ± (0.5 % + 100 mV)
  Output current  
  – at output voltage ≤ 30 V Max. 0.5 A
  – at output voltage ≤ 15 V Max. 2 A
Current measurement
  Measurement ranges 7 (100 µA … 100 A)
  Accuracy (at 25 °C) ± (0.1 % + offset) (offset is dependent on measurement range)
  A/D converter (per channel, internal) 16 Bit / 250 kSamples/s
Voltage measurement
  Accuracy (at 25 °C)  ± (0.5 % + 25 mV)
  A/D converter (per channel, internal) 16 Bit/250 kSamples/s
Control voltage of external power supply
  Control voltage for voltage/current -10 … +10 V
  Accuracy (at 25 °C) ± (0.01 % + 10 mV)
  Output current Max. 30 mA
Basic Data
  Supply voltage (via backplane) 12 V ±10 %
  Power consumption (all relays off) Typ. 7 W
  Power consumption (8 relays active,
output 12 V/1 A via internal power supply
Typ. 33 W
  Temperature range 0 … 55 °C
  Dimensions (L x W x H) 300 x 173 x 36 mm
  Weight Approx. 1,240 g
Maintenance
  Calibration recommended every 12 months
  Accredited (pre/re) calibration according to ISO/IEC 17025:2017

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