LENZE E82EV152K2C200 E82EV152K2C200 E82EV152K2C200 E82EV152K2C200 E82EV152K2C200

supplyH-CPU
The R/H-CPU is wired.
Proceed as follows to uninstall an R/H-CPU:
1. Open the front cover.
2. Switch the CPU into STOP mode.
3. Turn off the supply voltage.
4. Pull off the connector for the supply voltage.
5. Disconnect the cables at the CPU:
– R-CPU: Disconnect the PROFINET cables.
– H-CPU: Disconnect the PROFINET cables and fiber-optic cables.
6. Undo the CPU fixing screw(s).
7. Pivot the CPU out of the mounting rail.The R/H redundant system is a plant and system component. Special rules and
regulations must be adhered to in line with the area of application.
This section gives an overview of the key rules for integration of the redundant system into a
plant or system. Please follow these rules when connecting the R/H redundant
system.
Specific application
Observe the safety and accident prevention regulations that are applicable to specific
applications (for example Machinery Directive).
EMERGENCY-STOP devices
EMERGENCY OFF equipment to IEC 60204 (corresponds to DIN VDE 0113) must remain
effective in all operating modes of the plant or systemHazardous operating states must not occur in the following situations:
● The plant restarts after a voltage dip or power failure.
● Bus communication is reestablished following a fault.
● An undefined system state occurs in the R/H. Example: Failure of both
redundancy connections ≤ 1500 ms apart.
If a hazardous operating state occurs, force an EMERGENCY STOP.
An uncontrolled or undefined redundant system startup must not occur after the
EMERGENCY STOP device is unlocked.The points to note for line voltage are set out below:
● For fixed plants or systems without multipole circuit breaker, a mains disconnection
device (multipole) must be available in the building installation.
● For the load power supply, the configured rated voltage range must correspond to the
local line voltage.
● For all power circuits of the R/H redundant system, the fluctuation/deviation of
the line voltage from the rated value must be within the permitted tolerance.
You can find more information in the section Specifications for insulation tests, protection
class, degree of protection, and rated voltage (Page 300).
24 V DC supply
The points to note for a 24 V DC supply are set out below:
● Power supply units for the 24 V DC supply must supply safety extra low voltage in
accordance with IEC 61131-2 or IEC 61010-2-201.
● To protect the R/H redundant system from lightning and overvoltages, use
overvoltage arresters.
Suitable components for the lightning and overvoltage protection are specified in the
Defining interference-free controllersThe mounting rails of the R/H redundant system must be connected conductively to
the protective conductor to protect against electric shock.
Protection against external electrical influences
The following describes what you must pay attention to in terms of protection against
electrical influences and/or faults:
● The system for discharging electromagnetic interference must be connected to a
protective conductor with a sufficient cross-section for all plants with an R/H
redundant system.
● You must ensure that all supply, signal and bus cables are correctly laid and installed.
● For signal and bus lines, a cable break, wire break or a cross-circuit must not lead to
undefined states in the plant or system.
Protection of redundancy connections against unauthorized access
Protect the redundant connections in a redundant H system so that the fiber-optic