Specifications – Rockwell Automation 1794-ID2/B INSTALL INSTR 24v FLEX I/O 2 CHANNEL Incremental Encoder Module User Manual
Page 15

FLEX I/O 2-Channel Incremental Encoder Module 15
Publication 1794-IN063C-EN-E - February 2014
Specifications
General Specification
Attribute Value
Number of inputs
2
Number of inputs per counter
4 (A, B, Z, and G)
Module Location
1794-TB3, 1794-TB3S, 1794-TBN
Terminal base screw torque
1794-TB3, 1794-TB3S – 0.8 Nm (7 lb-in.)
1794-TBN – 1.0 Nm (9 lb-in.)
Dimensions, HxWxD
(with module installed)
45.7 x 94.0 x 53.3 mm (1.8 x 3.7 x 2.1 in.)
Input pulse width, min
Each signal condition must be stable for at least 2 µs to be
recognized
Counting frequency, max
100 kHz
Input range
Input ON
Input OFF
26.4V DC (24V DC +10%) max
6V DC min
3V DC max
-26.4V DC min
Input current, typical
3 mA @ 6V DC
9 mA @ 12V DC
15 mA @ 24V DC
Isolation voltage
Tested @ 500V DC for 1 s
Flexbus current
5 mA @ 5V DC
Power supply (external)
12…24V DC (+10%)
Current consumption from
external power supply
150 mA @ 12V DC
75 mA @ 24V DC
Power dissipation, max
5 W @ 26.4V DC
Thermal dissipation, max
17.1 BTU/hr @ 26.4V DC
Indicators (field side indication,
customer device driven)
1 green/red power/status indicator
12 yellow status indicators
Keyswitch position
1