1756-OB16IEFS | Allen-Bradley ControlLogix DC Output 10-30V

Overview

The 1756-OB16IEFS is a ControlLogix DC output module from Rockwell Automation's Allen-Bradley brand. It features 16 high-speed outputs that are individually isolated and electronically fused.

Features

• High-Speed Outputs: Each of the 16 outputs operates at high speed, ensuring quick response times.
• Remote Chassis Capability: This module works in a remote chassis with the Motion Axis Output Cam (MAOC) instruction.
• CIP Sync Compatibility: It acts as a CIP Sync slave device, utilizing CIP Sync for scheduling and timestamps.
• Removable Terminal Block: The module requires a removable terminal block housing, such as the 1756-TBCH or 1756-TBS6H.

Technical Specifications

• Module Type: DC Output Module
• Circuit Type: DC
• Input Voltage: 10-30 Volts DC
• Operating Voltage Range: 10-30 Volts DC
• Maximum Output Current Rating (Point):
  • 2 Amps at 30°C
  • 1 Amp at 60°C
• Maximum Output Current Rating (Module):
  • 8 Amps at 30°C
  • 4 Amps at 60°C
• Power Dissipation (Max): 3.6 Watts at 60°C
• Backplane Current at 5 Volts: 350 milliamps
• Backplane Current at 24 Volts: 3 milliamps
• Isolation Voltage: 50 Volts Continuous

Performance Metrics

• Inrush Pilot Duty: 4 Amps
• Current Draw:
  • 320 mA at 5.1 Volts
  • 3 mA at 24 Volts
• Backplane Power: 1.7 Watts
• Maximum Off-State Leakage Current: < 0.1 mA per point
• Surge Current: 4 Amps for 10 ms per point (repeat every 2 seconds)
• Maximum On-State Voltage Drop:
  • 0.4 Volts DC at 2 Amps
  • 0.2 Volts DC at 1 Amp

Operational Characteristics

• Maximum Current per Point:
  • 2 Amps at 45°C (4 channels max)
  • 1 Amp at 60°C
• Maximum Current per Module:
  • 16 Amps at 60°C (1 Amp per channel max)
  • 8 Amps at 45°C (2 Amps per channel max)
• Minimum Load Current per Point: 1 mA
• Continuous Isolation Voltage: 250 Volts

Delay and PWM Specifications

• Unscheduled Output Delay Time:
  • Nominal: 14 µs
  • Maximum: 23 µs (off to on and vice versa)
• Pulse Width Modulation (PWM) Cycle Time:
  • Minimum: 1 ms
  • Maximum: 1 hour
• PWM On Time:
  • Minimum: 200 µs
  • Maximum: 1 hour
• PWM On-Time Accuracy: +/- 20 µs

Configuration Options

Users can configure the following settings:

• States in Fault Mode: Options include Hold Last State, On, or Off.
• Duration of Fault Mode: Choices are 1, 2, 5, 10 seconds, or Forever.
• Final State after Fault Mode Duration: Select On or Off.
• States in Program Mode: Options include Hold Last State, On, or Off.