Basic information
DS 400-2
04/2019 - V01
12
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2.12
Intended applications
The devices are designed as components (BDM) to control EC synchronous motors and ac
asynchronous motors in stationary machines or installations.
Any other type of application must be approved by the manufacturer.
Protection rating IP20.
It is only allowed to install the units in stationary switch cabinets or machine frames which are
similar to switch cabinets. Industrial site of operation only.
For applications in residential areas additional EMC measures are necessary.
The user must draw up a hazard analysis for his end product.
Power supply connection only to the earthed TN three-phase current system with a maximum
three-pase voltage of 480V~ (max. 280 V~, phase - N (PE)). For any other types of power supply
(IT, TT power supply) matching transformers have to be installed.
Voltage peaks must not exceed 1000 V between the phase conductors and they must not exceed
2000 V between the phase conductors and the housing.
The capacities between the clocked power modules (converter, motor, filter) result in high
leakage currents. It is necessary to provide a safe and screwed earthing on the switch cabinet and
the motor. Protective earth conductors must comply with the standards EN 50178, EN61800-5-1,
and IEC 364.
Bad protective earth conductors are highly hazardous for health and life.
Protective parts for earth leakage (earth leakage circuit breakers) must be ac/dc sensitive and
designed and rated according to the standards EN 50178.
For emergency battery connection it must be borne in mind that the battery voltages are at
power supply voltage. All safety regulations regarding direct power supply connections must be
observed (protection against accidental contact with exposed parts, short-circuit protection, etc.).
The control connections of the unit (terminals X1, pins X7, X8, X9, X10) adhere to the 'safe
electrical isolation SELV' according to the standard EN 61800-5-1. The user must ensure that the
complete control wiring complies with the standards.
It must be paid attention to the equipotential bonding for components which are connected to
the unit and which do not have isolated inputs and outputs (equalizing connection GND). The
equalizing currents may destroy components and parts.
When measuring the isolation the units must be disconnected or the power connections must be
bridged together and the control connections must be bridged together. Non-observance will
cause damage to the semi-conductors in the unit.
Repeating circuits to earth and short circuits the values of which are all below the response
threshold for short circuits may cause damage to the output stages (conditionally short-circuit
proof acc. to standard EN 50178, EN61800-5-1).
Impermissible applications
- in life-sustaining medical devices or machines
- across unearthed or asymmetrical power supplies
- on ships
