10
SELECTION OF THE "IN CT/SP-SP2" FUNC-
TION
This instrument can use the input "IN CT/SP-SP2"
(connections 14 and 15) as current transformer
input or a logic input.
The current transformer input allows to measure
and display the current running in the load driven
by the OUTPUT1 during the ON and OFF period
of the OUT 1 cycle time. By this feature it is also
available the "OUT 1 failure detection" function
(see page 20). The logic input is used to switch,
by an external contact, from main set point to
second set point and viceversa.
To select the desired input type, set J504 as
detailed in the figure shown below:
Current transformer input Logic input
Fig. 16
GENERAL NOTES for configuration.
FUNC = This will memorize the new value of
the selected parameter and go to the
next parameter (increasing order).
MAN = This will scroll back the parameters
without memorization of the new value.
s = This will increase the value of the
selected parameter
t = This will decrease the value of the
selected parameter.
CONFIGURATION PROCEDURE
1) Remove the instrument from its case.
2) Set the dip switch V101 to the open condition
(see fig. 14).
3) Re-insert the instrument.
4) Switch on the instrument.
The display will show COnF.
NOTE : If "CAL" indication is displayed, press
immediately the s pushbutton and return to
the configuration procedure.
5) Push the FUNC pushbutton.
SEr1 = Serial interface protocol
OFF = No serial interface
Ero = Polling/selecting ERO
nbUS = Modbus
jbUS = Jbus
SEr2 = Serial link device address
Not available when SEr1 = OFF
From 1 to 95 for ERO protocol.
From 1 to 255 for all the other protocols.
NOTE: the electrical characteristic of the RS 485
serial interface will allow the connection of 31
devices maximum.
1 2 3 1 2 3
J504
1604-1-BC.p65 5/16/00, 10:25 AM10
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