MP55, MP55DP
SAFETY INSTRUCTIONS
6
To ensure adequate interference immunity, the bus cables (CAN and, for MP55DP,
Profibus DP) must be shielded twisted pairs. The transducer cables must also be
shielded. To ensure adequate interference immunity, use only the Greenline shielding
design (place the shield of the transducer cable on the connector housing).
The cables used for the MP55/MP55DP digital inputs and outputs should not be longer
than 30 meters, and should not exit the building in which the system is located. Otherwise
it will not be possible to ensure that the device works without fault. Strong magnetic
fields or lightning strikes may destroy equipment.
When connecting cables (fitting and extracting terminals), measures must be taken to
prevent electrostatic discharge which could damage the electronics.
The MP55/MP55DP module must be operated with a separated extra-low voltage (18 to
30 V DC supply voltage), which usually supplies one or more consumers within a control
cabinet.
If the device is to be operated on a DC grid1), additional precautions must be taken for the
discharge of surge voltages.
Conversions and modifications
The MP55 module must not be modified in its design or safety features except with our
express consent. Any modification shall exclude any liability on our part for resulting
damage.
In particular, any repair or soldering on motherboards is prohibited. When exchanging
complete modules, use only genuine parts from HBM.
The device is shipped from the factory with a fixed hardware and software configuration.
Changes can only be made within the scope documented in the manuals.
Qualified personnel
This device is only to be installed and used by qualified personnel, strictly in accordance
with the specifications and with the safety rules and regulations which follow.
This includes people who meet at least one of the three following requirements:
SAs project personnel, you are familiar with the safety design features of the
automation equipment, and are accustomed to applying them.
SAs automation plant operating personnel, you have been instructed on how to use the
equipment. You are familiar with the operation of the equipment and technologies
described in this documentation.
SAs a commissioning or service engineer, you have successfully completed training in
the repair of automation plants. You are also authorized to operate, ground and mark
circuits and equipment in accordance with safety engineering standards.
1). Wider-reachingelectric power distribution system (e.g. across multiple control cabinets), possibly
also supplying consumers with high rated currents.
