Catalogs > Automation Systems Catalog > I/O > In-Cabinet Distributed I/O > 1790D CompactBlock LDX I/O
1790D CompactBlock LDX I/O
| Introduction |  |
Product Design | |
Communication | |
Typical Configuration | |
Specifications | |
| Digital I/O Base Blocks | |
Analog I/O Base Blocks | |
Digital I/O Expansion Blocks | |
Accessory Products | |
- Add I/O expansion blocks to a base block, providing up to 80 I/O points per assembly.
- Expansion blocks cannot be used alone; they must be connected to a base block.
- Compatible with all base blocks except for the thermocouple and RTD base blocks, which do not support expansion blocks.
- 7-cm ribbon cable connector included; optional 15-cm ribbon cable available.
- D-shell or screw-clamp I/O connectors.
Digital Input Expansion Blocks
| Cat. No. | 1790-T8A0X | 1790-16BV0X | 1790-T16BV0X |
| Termination Type | Screw-clamp | D-shell | Screw-clamp |
| Number of Inputs | 8 Non-isolated | 16 current sinking/current sourcing, Non-isolated | |
| Voltage, On-State Input, Nom. | 120V AC | 24V DC | |
| Voltage Range, On-State Input | 85…132V AC | 9.6…28.8V DC | |
| Current, On-State, Max. | 9 mA at 132V AC | 8 mA per channel at 28.8V DC | |
| Input Signal Delay | On to Off: 30 ms Off to On: 10 ms |
On to Off: 2 ms Off to On: 2 ms |
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Digital Output Expansion Blocks
| Cat. No. | 1790-T0A8X | 1790-0B16X | 1790-T0B16X | 1790-0V16X | 1790-T0V16X |
| Termination Type | Screw-clamp | D-shell | Screw-clamp | D-shell | Screw-clamp |
| Number of Outputs | 8 Non-isolated | 16 current sourcing, Non-isolated | 16 current sinking, Non-isolated | ||
| Voltage, On-State Output, Nom. | 120V AC | 24V DC | |||
| Voltage Range, On-State Output | 15…132V AC | 10…28.8V DC | |||
| Output Current Rating | 0.5 A rms | 0.5 A max. per output, 4.0 A max. per common | |||
| Current, On-State, Min. | 10 mA rms | 1 mA per channel | |||
| Output Signal Delay | Off to On: 1 ms On to Off: 1/2 cycle + 1 ms |
Off to On: 0.5 ms On to Off: 1.0 ms |
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Digital Relay Output Expansion Blocks
| Cat. No. | 1790-0W8X | 1790-T0W8X |
| Termination Type | D-shell | Screw-clamp |
| Number of Outputs | 8 Contact Output, Isolated | |
| Relay Type | Form A, normally open, single pole, single throw | |
| Output Current Rating, Resistive | 2.0 A at 5…24V DC (at rated load) 2.0 A at 30V AC |
2.0 A at 5…28V DC (at rated load) 0.8 A at 48V DC (at rated load) 2.0 A at 125V AC (at rated load) 2.0 A at 250V AC (at rated load) |
Digital 24V DC Combination Expansion Blocks
| Cat. No. | 1790-8BV8BX | 1790-T8BV8BX | 1790-8BV8VX | 1790-T8BV8VX |
| Termination Type | D-shell | Screw-clamp | D-shell | Screw-clamp |
| Inputs | ||||
| Number of Inputs | 8 current sinking/current sourcing, Non-isolated | 8 current sinking/current sourcing, Non-isolated | ||
| Voltage Range, On-State Input | 9.6…28.8V DC | |||
| Current, On-State Input, Max. | 8 mA per channel at 28.8V DC | |||
| Input Signal Delay | On to Off: 2 ms Off to On: 2 ms |
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| Outputs | ||||
| Number of Outputs | 8 current sourcing, Non-isolated | 8 current sinking, Non-isolated | ||
| Voltage Range, On-State Output | 10…28.8V DC | |||
| Current, On-State Output, Min. | 1 mA per channel at 28.8V DC | |||
| Output Current Rating | 0.5 A max per point, 4.0 A max per common | |||
| Output Signal Delay | Off to On: 0.5 ms On to Off: 1.0 ms |
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