1756-OB32 I/O Module

1756-OB32 I/O Module

1756-OB32 Specification

Product Type:I/O Module
Model Number:1756-OB32 
Brand: PLC module
Outputs: 32-Point
Module Type: DC Output Module
Voltage: 12-24 Volts DC Source
Operating Voltage Range: 10-31.2 Volts DC
Output Delay Time, OFF to ON: 60 µs nominal / 1 ms max
Output Delay Time, ON to OFF: 200 µs nominal / 1 ms max
Current per Point: 0.5 A @ 50°C (122°F), linear derating to 0.35 A @ 60°C (140°F)
Current per Module: 16 A @ 50°C (122°F), linear derating to 10 A @ 60°C (140°F)
Maximum Output Current Rating (Point): 0.5 Amps at 50°C, 0.35 Amps at 60°C
Maximum Output Current Rating (Module): 16 Amps at 50°C, 10 Amps at 60°C
UPC: 10662468702994
Power Dissipation (Max): 4.8 Watts at 60°C
Backplane Current at 5 Volts: 300 milliamps
Removable Terminal Block(s): 1756-TBCH, 1756-TBS6H
Isolation Voltage: 50 Volts Continuous
Dimensions:3.5x14.5x14.5cm
Weight:0.2kg

1756-OB32 Description

The 1756-OB32 is an High-Density 24VDC discrete output module. This module 

is used to drive output devices connected to each channel of this module. Output 

devices may include pilot lamps, relays, contactors, panel annunciators, solenoids, 

buzzer, siren, horn and other actuating devices.

This output module is ideal for use in systems where a high number of outputs are 

existing with limited space for installation of larger or expansion chassis. It occupies 

single slot and supports installation in local or remote chassis. This module is compatible 

for use with any processor including the more recent versions.

This 1756-OB32 is provided with 32 LED indicators that is used to monitor 

channel actuations. This front panel indicators are important visual troubleshooting 

tool as it may be used to confirm the controller’s command to the connected load. 

Each channel has individual configurable parameters and support output forcing. 

This module only supports sourcing configuration.

A Removable Terminal Block (RTB) is required for use with this module. Appropriate 

RTB for this output module are 1756-TBCH and 1756-TBS6H. RTBs are used to 

provide modular connection to output devices. During module replacement, the entire 

RTB is removed from the installation slot and transferred to the replacement module. 

This prevents wiring reworks for faster maintenance and troubleshooting.

Recommended fuse for this module is the 5x20mm 800 mA supplied by the Littelfuse 

p/n SP001.1003 or the Schurter p/n 216.800. A Removable Terminal Block (RTB) is

required for wiring output connections. For this module, the only compatible RTB are

the cage clamp 1756-TBCH and the spring clamp 1756-TBS6H. Remember to install 

and ground the chassis and power supply prior to installing the module with the RTB. 

The module also has status light indicators that show the module status and the 

individual I/O status. The communication formats that work with the 1756-OB32 

module are scheduled output data, output data, rack optimization, listen-only 

rack optimization, and listen-only output data. You can also configure the states in 

Fault Mode per point and the states in Program Mode per point. You can choose 

the following options for both: Hold Last State, On, or Off. Note that this is set by 

default for all. The 1756-OB32 module has a voltage category of 12/24V DC source 

and an operating voltage range of 10 to 31.2V DC. Its current draw at 5.1V DC is 

300 mA and at 24V, it has a current draw of 2 mA. 

24/7 Fast Service →【Sales Manager】:King

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Outgoing photo

Quick details：

Q: Which country or area can be shipped?
A: Worldwide.
Q: How do you ship goods?
A: By air.(DHL/TNT/UPS/FEDEX)
Q:  Where do you ship the goods?
A: Xiamen.
Q: How long is your delivery time?
A: Generally it is 2-3 days if the goods are in stock. 
If the goods are not in stock,Need to negotiae.

Application field：

1《DCS Control System of Power Plant》
2《Manufacture of Intelligent Flat Tempering Furnace System》
3《PLC programmable conveying control system》
4《DCS Distributed Control System》
5《Intelligent Fire Water Supply Control System》
6《Computer Control System for Chemical Liquid Constant Flow of Chemical Plant》
7《Electrical Control System》papermaking, printing and dyeing production line, 

substation integrated control system.

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