Products Description
| Company Information | |||
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Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Allen‑Bradley 1756‑OB32 ControlLogix Digital DC Output Module |
| Module Type | High‑density digital DC output module (sourcing) |
| Series | ControlLogix 1756 I/O family |
| Number of Outputs | 32 DC output channels (two groups of 16) |
| Output Voltage Range | 10 – 31.2 V DC (nominal 12/24 V DC) |
| Output Current per Point | ~0.35 A max per point @ 60 °C (0.5 A max per point @ 50 °C) |
| Total Output Current | ~10 A max at 60 °C (16 A @ 50 °C) |
| Isolation Voltage | ~250 V continuous between groups and backplane |
| Backplane Current (5.1 VDC) | ~300 mA |
| Backplane Current (24 VDC) | ~2 mA |
| Power Dissipation | ~4.8 W @ 60 °C |
| Minimum Load Current | ~3 mA per point (off‑state leakage ~0.5 mA) |
| On‑State Voltage Drop | ~200 mV @ 0.5 A |
| Output Delay Time | OFF→ON ~60 µs–1 ms, ON→OFF ~60 µs–1 ms |
| Connection Type | Removable terminal block (e.g., 1756‑TBCH or 1756‑TBS6H) |
| Operating Temperature Range | 0 °C to 60 °C |
| Storage Temperature Range | −40 °C to 85 °C |
| Relative Humidity (Non‑condensing) | 5 % to 95 % |
| Dimensions (H × W × D) | ~54 mm × 181 mm × 222 mm (standard 1756 controller form factor) |
| Weight | ~0.34–0.36 kg |
FAQ
FAQ
Q1: What is the primary purpose of the 1756‑OB32 module?
It provides 32 discrete DC output channels to switch field devices like relays, solenoids, indicators, and small actuators in automation systems.
Q2: What DC output voltage range does this module support?
It operates over approximately 10 – 31.2 V DC (nominal 12/24 V).
Q3: How much current can each output point deliver?
Each output can source up to about 0.35 A at 60 °C, with higher ratings (~0.5 A) at lower temperatures.
Q4: How are the outputs organized?
The module has 32 outputs arranged as two groups of 16 points each for high‑density output control.
Q5: Does this module require an external power supply?
Yes — DC output modules require an external 12/24 VDC supply for their outputs; the module itself does not supply field power.
Q6: What kind of wiring interface does this module use?
Field wiring is connected via removable terminal blocks such as the 1756‑TBCH or 1756‑TBS6H.
Q7: What are the environmental limits for this module?
It operates in industrial environments from 0 °C to 60 °C and can be stored from −40 °C to 85 °C with up to 95 % non‑condensing humidity.
Q8: What are the physical size and weight of the 1756‑OB32?
The module’s footprint is roughly 54 mm × 181 mm × 222 mm and it weighs about 0.34–0.36 kg.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
