Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Allen‑Bradley 1756‑OB16D ControlLogix DC Diagnostic Output Module |
| Module Type | Digital DC output module with diagnostics |
| Series | ControlLogix 1756 I/O family |
| Number of Outputs | 16 DC output channels (8 per group, diagnostic) |
| Output Voltage Range | 19.2–30 V DC (24 V nominal) |
| Output Current per Point | Up to 2 A @ 30 °C, derated to ~1 A @ 60 °C |
| Total Output Current | ~8 A @ 30 °C, ~4 A @ 60 °C |
| Backplane Current (5.1 VDC) | ~250 mA |
| Backplane Current (24 VDC) | ~140 mA |
| Power Dissipation (Max) | ~3.3 W @ 60 °C |
| Isolation Voltage | ~250 V continuous between output groups and backplane (no individual channel isolation) |
| Short‑Circuit Capability | 8 A for 180 ms, 10 A for 120 ms (min) |
| Minimum Load Current | ~3 mA per point |
| Off‑State Leakage Current | ~1 mA max per point |
| On‑State Voltage Drop | ~1.2 V DC max @ 2 A |
| Off→On Delay Time | ~60 µs nominal, up to ~1 ms max |
| On→Off Delay Time | ~630 µs nominal, up to ~5 ms max |
| Connection Type | Removable terminal block (e.g., 1756‑TBCH / 1756‑TBS6H) |
| Operating Temperature Range | 0 °C to 60 °C |
| Storage Temperature Range | –40 °C to 85 °C (typical) |
| Relative Humidity (Non‑condensing) | 5 % to 95 % |
| Mounting | Installed in ControlLogix chassis slot |
| Dimensions (H × W × D) | ~300 mm × ~38 mm × ~111 mm (standard 1‑slot 1756 module footprint) |
| Weight | ~0.38 kg |
FAQ
FAQ
Q1: What is the purpose of the 1756‑OB16D module?
It provides 16 diagnostic DC output channels for a ControlLogix system and supports output status reporting.
Q2: What voltage range does the module support?
It operates over 19.2–30 V DC, with a 24 V nominal source category.
Q3: How much current can each output channel deliver?
Each channel can deliver up to approximately 2 A at 30 °C, derated at higher temperatures.
Q4: What total current can the module handle?
Up to about 8 A total at 30 °C, derated to around 4 A at 60 °C.
Q5: Does the module include isolation?
The module has continuous ~250 V isolation between output groups and backplane but not between individual channels.
Q6: What diagnostic features does it offer?
It supports output status and load diagnostics (on/off, no‑load detect) and electronic fusing per point.
Q7: What are the typical physical size and weight of the module?
It matches a standard 1756 ControlLogix I/O footprint (~300 × 38 × 111 mm) and weighs around 0.38 kg.
Q8: What environmental conditions can it operate in?
It operates from 0 °C to 60 °C with storage down to –40 °C and supports up to 95 % non‑condensing humidity.
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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.
