Danfoss AKA 245, Руководство пользователя

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DI1, DI2, DO1 and DO2
Termination
To obtain correct data transmission, the data transmission cable must be termina ted.
On the PC board next to the DANBUSS connection there are two wire switches which must either be
closed or open, depending on where the gateway is placed in the system.
The connection is a LonWorks ® interface RS 485.
Cf. separate literature RC8AC---
Termination: the wire switch must be closed.
The two relay outputs DO1 and DO2 and the two inputs DI1 and DI2 have in this manual been described
with the most frequentlky used function. If you wish to use an input or an output diff erently, it must be given
a new confi guration. For this purpose system software type AKM must be used. Cf. the AKM manual.
Warning! DO1 and DO2 must not be connected to low voltage on one output and high voltage on the other.
Both outputs must have the same voltage level.
The printer port has been designed as a parallel printer port. An ordinary parallel printer cable is used
for the connection.
An EPSON compatible matrix printer can be connected.
The on/off input DI1 is connected to a pushbutton switch (pulse pressure with spring return).
When you push the switch, a signal is sent that the printer is ready and that the paper is correctly
placed.
1) As the last unit on the data
transmission cable:
The wire switches are kept
closed (BUS TERM “ON”)
2) The gateway retransmits the
signal:
The wire switches are opened
(BUS TERM "OFF").
Terminals:
No.
E3 B
E2 A
E1
LON
Printer
8 Manual RS8DT102 © Danfoss 09/2004 AKA 245