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V6521H

6 Channel 6 kV/20 µA VME HV Power Supply Module

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Features

  • 6 independent channels in 1 unit wide VME 6U module
  • 6 kV / 20 µA output range
  • Available with positive, negative or mixed polarity
  • SHV coaxial output connectors
  • Common floating return
  • Low Ripple
  • Under/Overvoltage alert, overcurrent and max. voltage protection
  • 1 nA Current monitor resolution (with x10 Imon-Zoom: 100 pA)
  • Interlock logic for board enable
  • Individual channel enable
  • Optional DC Input Power Equalizer
  • Module control via software Tools
More info
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Overview

The CAEN Mod.V6521H is a 1-unit wide VME 6U module housing 6 High Voltage Power Supply Channels 6kV, 20 µA. The board is available with either positive or negative output polarity; mixed version with 3 positive and 3 negative channels is also available. The channels share a common floating return, which allows on-detector grounding reducing the noise level. HV outputs are delivered through SHV connectors.

blank SHV connector

Single width (1U wide), 6 channels for Mod. V6521H

Consult our connectors reference page for technical information.

The HV output RAMP-UP and RAMP-DOWN rates may be selected independently for each channel in the 1÷ 500 V/s range with 1 V/s steps.

The module features 1 nA Iset/Imon resolution. Features include Imon Zoom, increasing resolution to 100pA. The modules fit into both VME/VME64 standard and V430 crates. Functional parameters can be programmed and monitored via VMEbus.

A complete set of free software Tools is available to control this unit: GECO2020 with user friendly GUI and CAEN HV Wrapper library for custom SW development. OPC Server also supported.

Safety features allows the module to perform as a current generator and includes:

Channels
 can be enabled or disabled through the Global Interlock logic. Channels individually enabled via front panel jumpers (passive or active mode available).
Overvoltage and Undervoltage
 warning when the output voltage differs from the programmed value.
Overcurrent detection if a channel tries to draw a current larger than its programmed limit, it enters TRIP status, keeping the maximum allowed value for a programmable time (TRIP), before being switched off. If TRIP is set to “constant current mode”, the channel behaves like a current generator.
Hardware VMAX and IMAX Maximum output voltage and maximum current value can be fixed, via front panel potentiometer, at the same common value for all the board channels. IMAX and VMAX values can be read out via software.

Available Options:

  • A6580 DC Input Power Equalizer.

Technical Specifications

Package

1-unit wide VME 6U module

No. of Channels

6 (Common floating return)

Output Voltage

0÷6 kV

Max. Output Current

20 µA, Max. 2 µA with Imon Zoom (optional)

Voltage Set Resolution

100 mV

Voltage Monitor Resolution

100 mV

Current Set Resolution

1 nA

Current Monitor Resolution

1 nA (0.1 nA with Imon x10 Zoom)

VMAX hardware

0÷6 kV common for all the board channels

VMAX hardware accuracy

± 2% of FSR

VMAX software

0÷6 kV settable for each channel

VMAX software resolution

100 mV

Ramp Up/Down

1÷500 Volt/sec, 1 Volt/sec step

Trip

Max. time an “overcurrent” is allowed to last (seconds). A channel in “overcurrent” works as a current generator; output voltage varies in order to keep the output current lower than the programmed value. “Overcurrent” lasting more than set value (1 to 9999) causes the channel to “trip”. Output voltage will drop to zero either at the Ramp-down rate or at the fastest available rate, depending on Power Down setting; in both cases the channel is put in the OFF state. If trip= INFINITE, “overcurrent” lasts indefinitely.

Voltage Ripple
  • 10 ÷ 1000 Hz: <5 mVpp typical; < 10 mVpp maximum
  • 1 ÷ 20000 kHz: <3 mVpp typical; < 5 mVpp maximum
Vmon vs. Vout accuracy
  • Typical: ± 0.05% ± 1 V
  • Max: ± 0.05% ± 2 V
Vset vs. Vout accuracy
  • Typical: ± 0.05% ± 1 V
  • Max: ± 0.05% ± 2 V
Imon vs. Iout accuracy
  • Typical: ± 2% ± 0.005 µA
  • Max: ± 2% ± 0.01 µA
Iset vs. Imon accuracy
  • Typical: ± 2% ± 0.005 µA
  • Max: ± 2% ± 0.01 µA

Compare

Compare with VME High Voltage Power Supplies.

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Accessories

HV Cables
High Voltage Cable Assemblies
A148x
Inhibit - Kill Signal BNC Adapter for HV Power Supply Modules
A6580
DC Power Input Equalizer for V65XX Family

Ordering Options

Code Description
WV6521HAAAAA V6521HN - 6 Channel VME Programmable High Voltage Power Supply (-6 kV 20µA/1nA res)   RoHS
WV6521HMAAAA V6521HM - 6 Ch VME Programmable High Voltage Power Supply (3ch -6 kV 20µA, 3ch +6kV 20µA/1nA res)   RoHS
WV6521HPAAAA V6521HP - 6 Channel VME Programmable High Voltage Power Supply (+6 kV 20µA/1nA res)   RoHS

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