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Installation
Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019
7.1 Required tools
A screwdriver (blade width 2.0 mm, blade thickness 0.4 mm) is required for
connecting flexible cables to the terminals of the VT-MRPA1-2X. For commissioning
we recommend that you use a multimeter (measuring lead with 2-mm connectors).
Further tools are not required.
7.2 Recommended accessories
For the connection of the VT-MRPA1-2X we recommend the following accessories
(Table 6). These accessories are not included in the scope of the supply, but have to
be ordered separately:
Tabelle 6: Accessories
Designation
Shield kit for installation with shielded cables
(SERVICE PACKAGE VT-HMC...-1X/M...SCHIR&*ET)
7.3 Installation conditions
▶
When installing the amplifier, strictly adhere to the ambient conditions specified
in data sheet RE 30220.
▶
The housing of the VT-MRPA1-2X features protection class IP20. Requirements
that exceed type of protection IP20 have to be ruled out. Avoid contact of the
VT-MRPA1-2X with hydraulic fluids, acids, bases, corrosive agents, salts, metal
vapors, solvents, etc.
7.3.1 Place of installation
Electronics from Bosch Rexroth are intended for installation in control cabinets.
Outdoor installation is not permitted.
7.4 Installing und connecting the VT-MRPA1-2X
The dimensions of valve amplifier VT-MRPA1-2X are given in data sheet RE 30220.
The installation orientation is vertical. Observe the required mounting distances:
• The distance to covers and walls must be at least 2 cm.
• At ambient temperatures above 50 °C, provide a minimum distance of 1 cm to the
next assembly.
• By snapping the housing of the VT-MRPA1-2X on a conductive and earthed
mounting rail, the earth connection is established with the rear wall of the control
cabinet. This constitutes HF grounding of the VT-MRPA1-2X.
• Do not use any silicone-containing sealants, adhesives or insulating agents.
• Ensure maintenance-friendly installation, i.e. simple access to the connection lines.
Ensure free access to the connection side.
• Lay cables and lines so that they cannot be damaged and no one can trip over
them.
Install the VT-MRPA1-2X as follows on a DIN mounting rail in the control cabinet:
1.
Disconnect the relevant system part from the power supply.
2.
Snap the back panel of the VT-MRPA1-2X carefully into position on the DIN
mounting rail. Mechanical contact points on the rear panel of the VT-MRPA1-2X
ensure firm seating on the DIN mounting rail and the connection of the housing to
the grounding system of the control cabinet.
Material no.
R961011117
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