Elmo DBP SERIES 用户手册

20

DBP - Rev 6/93

            Ip - Iop

Tp = 2.2ln ----------

            Ip - Ic

Iop - Actual operating current before the peak demand.

The result of this filter is that the maximum peak can last for a maximum of

2 seconds. A lower peak can last longer.

Example: A motor is driven by an DBPF-10/135 amplifier at constant speed and

constant current of 5A. What is the maximum possible duration of a 20A peak ?

            20 - 5

Tp = 2.2ln -------- = 0.892 seconds

            20 - 10

The DCB accepts motion commands via an RS232 or RS485 communication line and

receives position feedback in an incremental encoder format either from an

encoder or from the resolver/digital circuit. The DCB derives the closed-loop

position error by comparing the command position and the feedback position. The

error is processed by a digital filter to yield with an analog motor command.

The analog  +5 volt range motor command is then amplified by the power

amplifier.

Following is a summary of all the operating modes of the DCB and a detailed

discussion of each of them.