OPTO 22 SNAP-PAC-R1 User Manual page 89

modules, especially special-purpose modules, may require additional power. You can use the
following table to help determine power needs for your I/O units.
Item
SNAP PAC R-series controller (except wired+wireless)
Wired+Wireless SNAP PAC R-series
SNAP-IDC5-SW digital input module
SNAP-IDC5-SW-NC digital input module
SNAP-AITM-8 analog input module
Isolated analog input and output modules (part numbers
ending in -i or iSRC) except SNAP-AITM-4i
All other 4-channel digital input and output modules (not
high-density digital modules)
SNAP-AICTD, AICTD-4 analog input modules
High-density digital input and output modules
SNAP-AIMA-32, SNAP-AIV-32, SNAP-AITM-4i analog input
modules
All analog output modules except SNAP-AOA-iSRC
SNAP mechanical power relay output modules
SNAP-AIARMS analog input module
SNAP-AIVRMS analog input module
SNAP-AICTD-8 analog input module
SNAP-AIMA, AIMA-4, and AIMA-8 analog input modules
SNAP-AITM and AITM-2 analog input modules
SNAP-AIMV-4 and AIMV2-4 analog input modules
SNAP-AIV, AIV-4, and AIV-8 analog input modules
SNAP-AIRTD analog input module
SNAP-AIR40K-4 analog input module
SNAP-AIRATE analog input module
SNAP-AIPM power monitoring module
SNAP-AIPM-3, SNAP-AIPM-3V power monitoring modules
SNAP-AILC and AILC-2 load cell modules
SNAP-SCM-ST2 and SNAP-SCM-SSI serial modules
SNAP-SCM-232, SNAP-SCM-485-422, SNAP-SCM-PROFI
SNAP-SCM-MCH16 not powering a breakout board
SNAP-SCM-MCH16 powering a breakout board
Total
1 Current from 5-volt supply
IMPORTANT: For a SNAP-PS5 or a SNAP-PS5-24DC power supply, the total power required must
not exceed 4 amps. For a SNAP-PS5U, the total power required must not exceed 5 amps.
APPENDIX: SNAP MOUNTING RACKS AND POWER SUPPLIES
X Power
Quantity
Req. (Amps)
1
1
SNAP PAC R-Series Controller User's Guide
Total Power
1
Required (Amps)
1.200 1.200 or
1.500 1.500
0.200
0.050
0.150
0.160
0.170
0.190
0.100
0.120
0.200
0.250
0.700