Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 285)

Publication 1753-UM001C-EN-P - March 2010 285
Specifications Appendix A
Digital Inputs
Number of inputs 20 (not electrically isolated)
Voltage, on-state 15V … 30V DC
Current consumption,
on-state
≥
2 mA @ 15V
7.5 mA @ 30V
Voltage, off-state,
max 5V DC
Current consumption,
off-state, max 1.5 mA (1 mA @ 5V)
Switching point,
typical 7.5V
Supply 5 x 20V / 100 mA @ 24V short-circuit proof
Digital Outputs
Number of Outputs 8 (not electrically isolated)
Output voltage range 18.4V … 26.8V
Output current Channels 1…3 and 5…7: 0.5 A @ 60 °C (140 °F)
Channels 4 and 8: 1 A @ 60 °C (140 °F); 2A @ 50 °C (122 °C)
Surge current per
channel 1 A for 10ms @ 1 Hz (Channels 1…3 and 5…7)
4 A for 10ms @ 1 Hz (Channels 4 and 8)
Current load, min 2 mA per channel
On-state voltage drop,
max 2.0V DC @ 2 A
Off-state leakage
current, max 1 mA @ 2V
Environmental Conditions
Temperature,
operating 0…60 °C (32…140 °F)
Temperature, storage -40…85 °C (-40…185 °F)
Mechanical Dimensions
Width 257 mm (10.1 in.) including housing screws
Height 114 mm (4.49 in.) including latch
Depth 66 mm (2.60 in.) including grounding bolt
Weight 1.2 kg (2.64 lb)
Attribute 1753-L28BBBM and 1753-L28BBBP