Further application notes

Supply voltage

For the chopper operation of the EL9576 a correct supply voltage is necessary via the E-BUS and via the connections on the front panel. If the supply voltage via the E-bus is missing, the external ballast resistor does not become active in the case of overvoltage on the field side. There is, however, a possibility to operate the Bus Terminal with the necessary supply voltage on the bus contacts without bus communication with a master being established. For changes to the standard parameters, however, the EL9576 must be connected to a master beforehand.