System-Specific Circuitry Of The Amplifier Module; Overview Of Connections - Bosch Rexroth VT-MRMA1-1 Operating Instructions Manual

Fig. 7: Installing the analog amplifier module

7.5 System-specific circuitry of the amplifier module

All cables (e.g. for command values, pressure transducer feedback values, enable
signals) have to be rated so (cable thickness, length) that the operating data and
operating ranges (input voltage range, power consumption) are adhered to taking
account of technical data (input resistance, power consumption).
Preconditions All device connections (4 plug-in screw connectors (see chapter 7.6.6 on page
31), 4-pole, wire cross-section: 0.2 mm
panel of the amplifier module. Wires may be rigid or flexible.
The circuitry of the amplifier module refers to the connection of the
• power supply unit (see chapter 7.6.2 on page 29)
• valve (see chapter 7.6.3 on page 29)
• pressure transducer (see chapter 7.6.4 on page 30)
• higher-level control (see chapter 7.6.5 on page 31)

7.6 Overview of connections

The binding documents for the electrical connection are always the wiring diagrams
and working instructions of the machine manufacturer!
Any compulsory components such as emergency stop circuits, master switches,
etc. have to be provided and planned by the system engineer in accordance with
recognized state of the art and in view of best possible safety.
The analog amplifier module VT-MRMA1 is equipped with 8 inputs and 8 outputs to
16 terminals as well as 1 test jack.
DIN rail TH35-7.5 to EN
60715
Latch for fixing the
amplifier module on the
DIN rail
To loosen the module, insert a screw
driver into the opening of the latch and
shift it in the direction of the arrow
to 2.5 mm ) are located on the front
2 2
RE 30214-B/03.2019, VT-MRMA1-1, Bosch Rexroth AG
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