Allen-Bradley 1756-L7SP Safety Partner Controller

Allen-Bradley 1756-L7SP GuardLogix Safety Partner Controller

Safety Architecture and Compatibility

• The 1756-L7SP forms a 1oo2 (one-out-of-two) safety architecture with primary controllers.
• It pairs with GuardLogix L7S models including 1756-L71S, L72S, and L73S series.
• This partner controller must install in the slot immediately to the right of the primary controller.
• The system meets Safety Integrity Level 3 (SIL 3) and Performance Level e (PL e) standards.
• It uses the primary controller's memory and does not have dedicated user memory.

Physical Specifications and Installation

• This safety partner controller has a two-slot width in the ControlLogix chassis.
• You can install it in compatible 1756 chassis including A4, A7, A10, A13, and A17 models.
• The controller requires specific power supplies including 1756-PA72, PA75, PB72, and PB75 series.
• It supports energy storage modules like the 1756-SPESMNSE for backup power.
• The module features an open-style enclosure for control panel installation.

Electrical Characteristics

• Backplane current requirement is 800 mA at 5.1V DC for normal operation.
• It draws only 5 mA at 1.2V DC from the backplane power supply.
• Total power dissipation measures 2.5 watts maximum during operation.
• Thermal dissipation rating is 8.5 BTU per hour for heat management.
• Isolation voltage rating is 30V continuous with basic insulation protection.

Environmental Specifications

• Operating temperature range is 0°C to 60°C (32°F to 140°F) for reliable performance.
• Storage temperature range extends from -40°C to +85°C (-40°F to +185°F).
• Humidity tolerance is 5-95% non-condensing relative humidity.
• It withstands operational shock up to 30G for rugged industrial environments.
• Vibration resistance is 2G at 10-500Hz for stable operation.

Communication and Programming

• The controller supports standard EtherNet/IP, DeviceNet, and ControlNet safety protocols.
• Programming options include Relay Ladder Logic (RLL) and Structured Text.
• It also supports Sequential Function Chart (SFC) programming language.
• The module includes USB 2.0 ports with proper isolation and safety testing.
• All safety communications meet industry standards for reliable operation.

Frequently Asked Questions (FAQ)

• What primary controllers work with the 1756-L7SP?
  The 1756-L7SP pairs with 1756-L71S, L72S, and L73S series controllers including SK versions.
• Where do I install the safety partner in the chassis?
  You must install the 1756-L7SP in the slot immediately to the right of the primary safety controller.
• Do you have this safety controller in stock?
  We maintain good stock levels and typically ship within five business days after order confirmation.
• What safety ratings does this controller achieve?
  The system achieves SIL 3 and PL e safety ratings for high-demand safety applications.
• What is your return policy for this product?
  We offer a 30-day return policy from the delivery date for all our products.

For technical specifications and pricing, please contact: sales@nex-auto.com