3... INTERFACE MODULES

Input / Range

SW 1

SW2

SW3

SW4

Thermocouples

OFF

OFF

OFF

ON

VDC up through +/-2 VDC

 

 

 

 

VDC up through +/-10 VDC

OFF

OFF

ON

OFF

VDC up through +/-30 VDC

OFF

ON

OFF

OFF

All Current (mADC) Ranges

ON

OFF

OFF

ON

Table 3... -4: MLIM-1 configuration switch settings

MLIM-1 Channel Configuration via Software:

When a MLIM-1 channel is configured as a particular type of input via the module configuration switches, the configuration will be automatically detected during the development of a Program Net for the OMP-MODL. Software input range configuration and utilization of the MLIM-1’s channels in a Program Net is covered in Chapter 7 and within the Master Icon Listing in Appendix A.

 

 

 

 

Ground Ref

ON

 

 

 

jumpers

 

 

 

 

 

 

 

 

Fuse (one per

 

 

 

 

channel)

OFF

Chan A

Chan B

Chan C

Chan D

Configuration Switches (one per channel)

I/O Wiring Terminal

Strip

ml013

Figure 3... -13: Channel configuration switches within the MLIM-1

and MLAD-1 Modules

Input Overcurrent Fuses:

Each channel is protected by a 125mA fuse as shown in Figure 3... -12 (circuit) and Figure 3... -13 (physical location on module). This fuse will protect the module from overcurrent surges received from malfunctioning or improperly connected sensors and transmitters.

In the event that a channel on a module quits responding with proper values, it may be an indication that this protective fuse has blown. The fuse can be removed from the circuit and checked for continuity with an ohm-meter and/or replaced with a Littelfuse P/N: 273.125 fuse available from Omega Engineering Incorporated or many electronic distributors.

USING THE OMP-MODL

3-23

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Image 47
Omega Vehicle Security OMP-MODL manual MLIM-1 Channel Configuration via Software, Input Overcurrent Fuses