
PACHC 5715-720UK.indd 17.02.23
9
Electrohydraulic Control Module
Series PACHC Hazards
2.3.5 Safety-conscious Working
This device may be operated only by qualied personnel.
Qualied personnel in the sense of these operating instructions consists of:
• Persons who, by virtue to their training, experience and instruction, and their knowledge of pertinent norms, spec-
ications, accident prevention regulations and operational relationships, have been authorized by the ocer re-
sponsible for the safety of the system to perform the required task and in the process are capable of recogniz-
ing potential hazards and avoiding them (denition of technical personnel according to VDE105 or IEC364),
• Persons who have a knowledge of rst-aid techniques and the local emergency rescue services.
• Persons who have read and will observe the safety instructions.
• Those who have read and observe the manual or help (or the sections pertinent to the work to be carried out).
This applies to all work relating to setting up, commissioning, conguring, programming, modifying the conditions of
utilization and operating modes, and to maintenance work.
This manual and the help information must be available close to the device during the performance of all tasks.
2.3.6 Special Safety Instructions
• Check the correct association of the device and its documentation.
• Never detach electrical connections while voltage is applied to them.
• Safety devices must be provided to prevent human contact with moving or rotating parts.
• Make sure that the device is operated only when it is in perfect condition.
• Implement and activate the stipulated safety functions and devices.
• Operate the device only with the housing closed.
• Make sure that all devices are suciently xed.
Project planning
• 24 V DC power supply: generate as electrically safely separated low voltage. Suitable devices include split-wind-
ing transformers built in compliance with European Standard EN 60742 (corresponds to VDE 0551).
• Power breakdowns or power fades: the program structure is to ensure that a dened state at restart excludes
all dangerous states.
• Emergency-o installations must comply with EN 60204/IEC 204 (VDE 0113). They must be operative at any
time.
• Safety and precautions regulations for qualied applications have to be complied with.
• Please refer to the notices of warning which, at relevant places, will make you aware of possible sources of dan-
gerous mistakes or faults.
• Relevant standards and VDE regulations are to be complied with in every case.
• Control elements are to be installed in such a way as to exclude unintended operation.
• Lay control cables such that interference (inductive or capacitive) is excluded if this interference could inuence
controller operation or its functionality.
Maintenance and servicing
• Precautions regulation VBG 4.0 to be observed when measuring or checking a controller after power-up. This
applies to § 8 (Admissible deviations when working on parts) in particular.
• Repairs must be carried out by specially trained Parker sta only. Warranty expires in every other case.
• Only use parts approved of by Parker. Only genuine Parker modules must be used in modular controllers.
•
Modular systems: always plug or unplug modules in a power-down state. You may otherwise damage the modules
or (possibly not immediately recognisably!) inhibit their functionality.
• Always dispose of (rechargeable) batteries as hazardous waste.