Connecting The Supply Voltage - Bosch Rexroth VT-MSPA -2X Series Operating Instructions Manual

Fig. 1: Mounting the VT-MSPA...-2X on a DIN mounting rail
Should the spring-loaded latch not snap in automatically, it can be released using a
screwdriver (see Fig. 1 on the right). After having positioned the latch, let it spring
back to the snapped-in position.
Observe the following when connecting the VT-MSPA...-2X:
▶ For mounting, observe the notes on applicable standards and operating
conditions in data sheet RE 30232.
▶ Do not use connectors with free-wheeling diodes or LED lamps for connecting
solenoid cables to the valve!
▶ Use low-capacitance cables.
▶ Whenever possible, execute cable connections without intermediate terminals.
▶ Install sensor cables separately.
▶ When sources of electromagnetic disturbance are used (e.g. frequency
converter), malfunction may occur. Avoid the installation of the VT-MSPA...-2X in
the direct vicinity to sources of disturbance.
▶ The distance to aerial lines, radio sources and radar equipment must be at least
1 m.
▶ Do not lay signal cables near power cables.
▶ The system ground is an essential, integral part of EMC protection of the
VT-MSPA...-2X. Here, interference, which is transported to the VT-MSPA...-2X
via data and voltage supply cables, is dissipated. This function can only be
ensured, if the system ground itself does not inject interference into the control
electronics.

7.5 Connecting the supply voltage

1. Disconnect the relevant system part from the power supply.
2. Inspect all cables for intactness.
3. Connect the signal and solenoid cables according to your circuit diagram to the
relevant terminals of the VT-MSPA...-2X .
Connect the supply voltage and check the presence of voltage by switching on.
4.
RE 30232-B/08.2020, Valve amplifier VT-MSPA, Bosch Rexroth AG
Installation 15/36