The transmitter power and the data rate for the SERCOS interface are set with the switch S4. On delivery, the DKC is set to an average transmitter power (-4,5 dBm) and the lowest data rate(2 Mbit/s). The switches are in the OFF position if when the switch lever is facing the rear (rear panel). Switch S4/1 is down (see marking on the unit)The transmitter power is set with the switches S4/2 and S4/3. The following table demonstrates the relationship between switch position and transmitter power.
• Several drives connected via the DC bus circuit. (up to 6 DKCs) • Several drive controllers and an auxiliary bleeder modules connected via the DC bus circuit. (up to 6 DKCs + 1 BZM)
Dimensioning the components relevant for regeneration
For each application, it is necessary to check whether the • continuous regenerative power • peak regenerative power • regenerative energy available from the application can be sufficiently absorbed by the bleeder (brake resistance). If the available regenerative energy and the regenerative energy from the mechanics exceeds the absorbing capabilities of the bleeder built into the unit, this capability can be increased on the DKC**.*-040-7-FW by using the following hardware configurations. • A drive controller and auxiliary bleeder module connected via the DC bus circuit. (1 DKC + 1 BZM)
Dimensioning
When braking the drive, the rotary energy available in the mechanics is released as regenerative energy in the DC bus of the DKC. It can be • released in the form of heat via the bleeder module or auxiliary bleeder integrated into the DKC - or - • stored as energy in the DKC with a connected auxiliary capacitance module and reused for subsequent acceleration procedures. This reduces the power dissipated in the cabinet, and its own energy consumption is reduced.
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