INTRODUCTION
I-E96-301B
A - 1
APPENDIX A - NIAI05
TERMINATION MODULE CONFIGURATION
INTRODUCTION
The Universal Analog Input Slave Module (IMASI03) uses two
NIAI05 termination modules to connect field wiring (eight
inputs each). Jumpers on each NIAI05 configure each of the
eight analog inputs for either system powered 4-20 mA, exter-
nal powered 4-20 mA, 3-wire RTD, differential or single ended
voltage.
IMASI03 termination modules with both revision A and revi-
sion B hardware are in service. This section contains informa-
tion on revision A and B termination modules. See Figure
for the revision A module and Figure
for the revision B
module.
Setup
The two NIAI05 termination modules should be installed next
to each other in the same termination module unit (TMU) or
directly above and below each other in two separate TMUs. The
distance between termination modules is limited by the dis-
tance between J2 and J3 on the NKAS02 (or NKAS12) connec-
tor cable.
Channel designation labels are provided with each NIAI05.
This allows the user to configure one NIAI05 as the J2 termina-
tion module for channels 1 through 8 and configure a second
NIAI05 as the J3 termination module for channels 9 through
16. The J2 termination module connects to the NKAS02 (or
NKAS12) connector labeled J2. The J3 termination module
connects to the NKAS02 (or NKAS12) J3 connector.
The NKAS02 connector cable has PVC insulation and is rated
for 80
o
C (0 to 176
o
F) at 300 V (UL rated type CL2). The
NKAS12 connector cable has non-PVC insulation and is rated
for 90
o
C (0 to 194
o
F) at 300 V (UL rated type PLTC).
Cold Junction Reference Input
Each NIAI05 termination module (two are required, even if only
8 inputs or less are used) has an RTD which measures the
temperature of the termination module. This temperature is
used to compensate for the cold junction effect on thermocou-
ple inputs.
When using the built-in cold junction reference, the termina-
tion module front cover should be in place. The cover encloses
both the terminal blocks and the RTD. It helps maintain the
