6
hivolt.de GmbH & Co. KG
Oehleckerring
40 ∙D-22419 Hamburg ∙Germany ∙+49 40 537122-0 ∙+49 40 537122-99 ∙[email protected] ∙www.hivolt.de 2Overview
This manual covers the following models:
HA61-3B30-U 19"/3U single channel high voltage amplifier with simple command
interface via USB and Ethernet
HA61-3B30-G 19"/3U single channel high voltage amplifier with integrated DDS/ARB
signal generator and SCPI based command interface via USB and Ethernet
3Description
The HA61-3B30 is a fast precision high voltage amplifier with an optionally integrated signal generator
in a 19" rack mountable case. This single channel amplifier provides output voltages of -3000V to
+3000V at ±30mA (static) and >50mA peak (dynamic). The dynamic output current is available for
signal frequencies down to 1Hz.
The amplifier features high precision, high stability and very low noise. It is suitable to drive capacitive
and resistive-capacitive loads. It can easily drive loads like EAP actuators, electrorheological fluid
elements, electrostatic deflection electrodes and many other loads.
The internal PID-controller can be parametrized and thus be adapted to various load characteristics.
Power bandwidth and slew rate depend on the actual load capacitance.
A differential ±10V amplifier input prevents any ground loops and provides excellent noise
suppression.
The voltage gain is fixed to 300. Voltage and current monitor outputs are provided. One TTL compatible
INHIBIT input and one 24V compatible INH input are provided to quickly switch the output on and off.
The maximum output current can be limited to programmable values and programmable behavior.
When the output current reaches the threshold, the output will either shut down or the output current
will be limited to the set value.
Internal high voltage sources feed the output stage. The output stage is protected against overload,
short circuit, over temperature, transient overvoltage and high voltage flashover/arcing. The amplifier
output is made available via an SHV high voltage connector at the rear.
Operational and overload conditions are displayed on the front panel.
A safety interlock circuit with two redundant interlock lines is provided to integrate the unit into an
emergency shutdown circuit. When the interlock loop is opened, the internal high voltage sources are
shut down. In addition to the interlock inputs a HV OFF palm button is available on the front panel. The
red indicator lamp HV ON signals that the internal high voltage sources are switched on.
The internal high voltage sources can be switched on and off via the pushbuttons ON and OFF, via the
24V control signals ON and /OFF on the interlock interface or via software commands.
An isolated USB interface (COM) and an Ethernet interface (ETH) are provided, allowing the user to
control the amplifier via a simple command interface (parameterization of the slew-rate limiter and
the pid controller, setting of the output current limit, setting of the output voltage, voltage and current
monitoring, readout of temperatures and other operating parameters, amplifier configuration,...).
