Figure 4. Location and use of voltage control jumpers on a typical I/O adapter module input board
4.
Once the I/O adapter module has been selected, check the settings of the voltage
control jumpers located on the I/O adapter module input board(s). All eight versions
of the I/O module input boards shown in Figure 4 are identical, with the exception of
the placement of the two voltage control jumpers J4 and J5. Note the location of
these jumpers in Figure 4.
For 48V operation both jumpers must be in the 48V position. For 125V
operation both jumpers must be in the 125V position. The 250V modules
should have both jumpers in the 125V position. See Table 2.
Table 2. Voltage control jumper settings
I/O Adapter Module
part number
I/O Adapter Module type
J4 and J5 jumper position
105770-2
105770-4
105740-2
105740-4
2 function 48/125V solid state*
4 function 48/125V solid state
2 function 48/125V relay*
4 function 48/125V relay
48V position
for 48V operation
125V position
for 125V operation
105770-3
105770-5
105740-3
105740-5
2 function 250V solid state*
4 function 250V solid state
2 function 250V relay*
4 function 250V relay
125V position for 250V
operation
* On 2 Function Systems, Function 3 and 4, pre-trip timers must be set to 3ms.
RFL 9508 PLC-TT
RFL Electronics Inc.
September 5, 2012
8
(973) 334-3100
