Test Device Type Vt-Hdt-1-2X - Bosch REXROTH VT-HDT Series Operating Manual

Test device type VT-HDT-1-2X

Approbiate use:
The test device is intended for checking the function
of proportional valves with OnBoardElectronic (OBE)
with an operating voltage of +24V
These can be directional valves, throttles, pressure
limiting, proportional valves, etc.
The power supply is done either by power supply unit
+24V (VT-HDTNT) or valve cable on site.
The operating mode "Simulator mode" may only be
used, when the valve , which is going to get tested, is
removed (from the machine separated) or appropriate
security measures have been implemented.
Touchscreen:
The brightly lit TFT touchscreen is easy to read and
intuitive to use.
The resistive touchscreen is resistant to dirt.
General conditions:
The valve supply (24V) is applied to terminals A (+) and B (-).
The setpoint is applied to terminals D (+) and E (-).
The actual value is applied to the terminals F (+) and C (-).
Exception: Setting in the screen RANGE: 24V-> C, F: B (E)
With this setting, 24V are switched to terminal C (for example: Enable).
The actual value is measured in this case at the terminals F (+) and B (-).
For valves, which provide the actual value at the terminals F (+) and E (-), please contact the manufacturer.
The range setting '24V-> C, F: B (E)' causes 24V to reach terminal C.
This can lead to defects at unsuitable valves or cause machinery movement.
The user will be informed by an additional security prompt.
Bosch Rexroth GmbH Austria
Type VT-HDT-1-2X
Warning
V1.08 / 2019-01 Page 3