OPT-SNAP-AIMA-HDB-FM

SNAP-AIMA-32 SNAP 32-Ch -20mA to +20mA Analog Current Input Module

The SNAP-AIMA-32 provides 32 channels of -20 mA to +20 mA analog current input. The module does not supply loop
excitation current. Although the 32 channels are not isolated from each other, the module is transformer isolated and
optically isolated from other modules and devices.
 
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for
PC-based control or for use as intelligent remote I/O for an Allen-Bradley RSLogix PLC system, such as ControlLogix,
MicroLogix, or CompactLogix.
 
CAUTION: We strongly recommend that you use the SNAP-AIMA-HDB breakout rack and SNAP-HD-BF6 wiring harness
with this module. Miswiring of any point on the module can cause severe damage; the breakout rack protects the
module from many wiring errors.
 
Compatibility: This module can be used only with SNAP PAC brains and R-series controllers. See SNAP-AIMA for a two-
channel module that can also be used with legacy SNAP Ethernet and serial brains.
 
If you need Factory Mutual approval, see the SNAP-AIMA-32-FM.
 
For a similar module that provides two isolated channels, see SNAP-AIMA-i.
 
For a module that provides two isolated channels and supplies loop excitation, see SNAP-AIMA-iSRC.
 

Input Range	-20 mA to +20 mA
Over-Range Limits	From -22 to +22 mA (+/-20 mA range)
Resolution	0.8 microamps
Input Filtering	-3 dB @ 31 Hz
Data Freshness (Max)	1.15 s
DC Common Mode Rejection	>-120 dB
AC Common Mode Rejection	>-120 dB @ 60 Hz
Maximum Survivable Input	36 mA or 9 VDC
Maximum Operating Common Mode Voltage	250 V
Accuracy	0.1% (20 microamps)
DRIFT: Gain Temperature Coefficient	30 PPM/ °C
DRIFT: Offset Temperature Coefficient	15 PPM/ °C
Isolation	1500 V, field to logic
Power Requirements	5 VDC (±0.15 ) @ 150 mA
Input Resistance - Single Ended	100 ohms (each channel)
Operating Temperature	0 °C to 70 °C
Storage Temperature	-25 °C to 85 °C
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	SNAP-AIMA-32: UL, CE, RoHS, DFARS. SNAP-AIMA-32-FM: CE, FM, RoHS, DFARS
Warranty	Lifetime