Technical Specifications of 1756-IH16I Module

Input Configuration

• Inputs: 16 individually isolated
• Voltage category: 125V DC sink/source

Voltage and Current Ratings

• Operating voltage range: 90…146V DC
• Nominal input voltage: 125V DC
• Current draw @ 5.1V: 125 mA
• Current draw @ 24V: 3 mA
• Total backplane power: 0.71 W

Input Delay Time

• Off to On: Hardware delay: 2 ms max + filter time
• On to Off: Hardware delay: 6 ms max + filter time
• User-selectable filter times: 0 ms, 1 ms, 2 ms, 9 ms, 18 ms

Power and Thermal Dissipation

• Power dissipation: 5 W max @ 60 °C (140 °F)
• Thermal dissipation: 17.05 BTU/hr

Electrical Characteristics

• Off-state voltage, max: 20V DC
• Off-state current, max: 0.8 mA
• On-state current: 1 mA min @ 90V DC, 3 mA max @ 146V DC
• On-state voltage:
  • 90…146V DC
  • 90…146V DC @ 50 °C (122 °F), 12 channels on
  • 90…132V DC @ 55 °C (131 °F), 14 channels on
  • 90…125V DC @ 60 °C (140 °F), 16 channels on
  • 90…146V DC @ 30 °C (86 °F), 16 channels on
• Inrush current, max: 250 mA
• Input impedance, max: 48.67 kΩ @ 146V DC

Update and Timestamp

• Cyclic update time: 200 µs…750 ms
• Change of state: Software configurable
• Timestamp accuracy: ±200 µs

Isolation and Protection

• Isolation voltage: 250V continuous, inputs-to-backplane, and input-to-input
• Reverse polarity protection: Yes

Module Keying and Terminal Blocks

• Module keying: Electronic, software configurable
• Removable terminal blocks: 1756-TBCH, 1756-TBS6H
• RTB keying: User-defined mechanical

Physical and Environmental Specifications

• Slot width: 1
• Wire category: 1
• Enclosure type: None (open-style)
• North American temperature code: T4
• Max surrounding air temperature: 60 °C (140 °F)
• Non-operating temperature: -40…+85 °C (-40…+185 °F)
• Relative humidity: 5…95% noncondensing
• Vibration: 2 g @ 10…500 Hz
• Shock (operating): 30 g
• Shock (nonoperating): 50 g

Immunity and Emissions

• Emissions: IEC 61000-6-4
• ESD immunity: 6 kV contact discharges, 8 kV air discharges (IEC 61000-4-2)
• EFT/B immunity: ±4 kV at 5 kHz on signal ports (IEC 61000-4-4)
• Surge immunity: ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports (IEC 61000-4-5)
• Conducted RF immunity: 10V rms with 1 kHz sine wave 80% AM from 150 kHz…80 MHz (IEC 61000-4-6)
• Oscillatory surge withstand: 3 kV (IEEE C37.90.1)