Page 73 - M1-12 Ops Manual McMurdo 2016

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.
GENERAL NOTES for configuration.
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.
s = t =
This will decrease the value of the selected parameter.
To select the desired input type, set J504 as detailed in the figure shown below:
CONFIGURATION PROCEDURE
1604-1-BC.p65
10
5/16/00, 10:25 AM
I P Q
I P Q
Current transformer input Fig. 16
Logic input
tSHR
OFF = No serial interface Ero = Polling/selecting ERO nbUS = Modbus
jbUS = Jbus
10
FUNC = MAN =
This will memorize the new value of the selected parameter and go to the next parameter (increasing order).
This will scroll back the parameters without memorization of the new value. This will increase the value of the selected parameter
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
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.