Operating manual EMD1101 Description
2 Description
The EMD 1101 add-on station is used to increase the number of consumer
channels which are controlled by the EML 1101 maximum optimisation
computer. Every EMD 1101 add-on station provides 8 additional consumer
channels.
The EMD 1101 add-on stations are connected to the EML 1101 maximum
optimisation computer via the add-on bus. Depending on the type of EML 1101
maximum optimisation computer, up to 4 or max 10 EMD 1101 add-on stations
can be connected to the add-on bus. Thus there are a total of maximum 36 or
84 consumer channels available.
2.1 Function
The EMD 1101 add-on stations are connected to the EML 1101 maximum
optimisation computer via the add-on bus. Control commands are received from
this device when a particular consumer channel is to be switched on or off.
The actual status of the consumer channels can be seen from the LEDs on the
front plate. Thus a lit LED corresponds to a closed relay contact and therefore a
switched-on consumer channel.
A DIP switch labelled "Consumer on fault" is on the front plate. This is used for
defining the status fault of every consumer channel.
A rotary switch labelled "Station number". is on the front plate This is used for
assigning the station number which the EMD 1101 add-on station is to have for
the add-on bus.
An LED labelled "Access" is on the front plate. This flashes when data is
exchanged with the EMD 1101 add-on station. On fault, this LED is unlit and the
set consumer status on fault is given.
2.2 Function on fault
maximum optimisation computer and the EMD 1101 add-on station, the
EMD1101 add-on station automatically issues the set consumer status on fault.
Once there is successful connection, the EMD 1101 add-on station again issues
the preset consumer status from the EML 1101 maximum optimisation
computer.
From a specified lower operating voltage limit the EMD 1101 add-on station
gives the defined consumer status on fault.
Note: Even when the mains supply is isolated the consumer status on
fault is given.
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