Safety instructions 9/40
RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG
safety-related parts of control systems (functional safety). The VT-VSPA2-1-2X/V0/T*
analog amplifier card itself does not contain any safety functions for personal safety
and is not a safety-relevant component. The amplifier card is solely used for the
generation of the solenoid currents for on/off valves.
• Do not commission the product until you can be sure that the end product (for
example a machine/system) where the Rexroth products are installed comply with
the country-specific provisions, safety regulations and standards of the application.
2.6 Product-specific safety instructions
WARNING
Dangerous movement!
Risk of injury due to incorrect control of the valve via the amplifier card and unfore-
seeable machine movements caused in this way.
▶ The amplifiers may only be operated with the valve/coil combinations released
in the type key.
▶ If persons must access the danger zone during active control, monitoring or
measures must be provided for personal safety which are superior to the sys-
tem. These measures must be provided according to the specific data of the
system and on the basis of the risk and error analysis of the system manufac-
turer/user. In this connection, the safety provisions applied for the system must
be taken into account.
The electronics always causes interference on other electronics lying within the
limit values. Thus, malfunctions in the control are possible.
▶ Only use electronics under the EMC limit values or provide for correspond-
ingscreening.
The electronics of the VT-VSPA2-1-2X/V0/T* analog amplifier card reacts to electro-
magnetic interference of unshielded, incorrectly laid or incorrectly connected signal
lines. If the limit values specified in the data sheet are exceeded, malfunctions or
uncontrolled movements are possible.
▶ Comply with the limit values specified in the data sheet; use only electronics
under the EMC limit values or provide for corresponding screening.
Electrostatic processes, an incorrect earthing concept or missing equipotential
bonding may lead to damage to the electronics and thus cause malfunctions or
uncontrolled movements at the machine.
▶ Provide for correct earthing and for equipotential bonding.
If the product is used outside the specified IP protection class, short-circuits and
malfunctions and thus uncontrolled machine movements may result.
▶ You may therefore only use the product within the IP protection class and envi-
ronment specified in the data sheet.
High pressure!
Risk of injury!
▶ Depressurize the relevant part of the system before performing any work on the
control electronics.
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