1756-L7SP

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1756-L7SP

Type

Safety partner module

Application

PLC controller

Used with

ControlLogix 1756 chassis

Safety memory

Configured to match primary controller

Energy storage modules

1756-SPESMNSE capacitor energy storage module for the safety partner (removable, no residual, WallClockTime power backup) 1756-SPESMNRM capacitor energy storage module for the safety partner (non-removable, helps prevent USB connection and SD card use to help secure the controller)

Current draw @ 1.2V DC

5 mA

Current draw @ 5.1V DC

800 mA

Power dissipation

2.5 W

Thermal dissipation

8.5 BTU/hr

Weight, approx

0.25 kg (0.55 lb)

Slot width

2 (both modules needed; each is one slot)

Module location

Chassis slot immediately to the right of the primary controller

Chassis

1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17K

Power supply, standard

1756-PA50, 1756-PA50K, 1756-PA72, 1756-PA72K, 1756-PA75, 1756-PA75K, 1756-PB50, 1756-PB50K 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PC75, 1756-PH75

Power supply, redundant

1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2K

Temperature code

T4

Enclosure type rating

None (open-style)

Temperature, operating

0 °C ≤ Ta ≤ +60 °C (+32 °F ≤ Ta ≤ +140 °F)

Temperature, nonoperating

-40…+85 °C (-40…+185 °F)

Relative humidity

5…95% noncondensing

Vibration

IEC 60068-2-6 (Test Fc, Operating)

Shock, operating

IEC 60068-2-27 (Test Ea, Unpackaged Shock)

Shock, nonoperating

IEC 60068-2-27 (Test Ea, Unpackaged Shock)

Emissions

IEC 61000-6-4

ESD immunity

IEC 61000-4-2

Radiated RF immunity

IEC 61000-4-3

Conducted RF Immunity

IEC 61000-4-6 (Not applicable: USB is a temporary programming port.)

Technical documents (1)

• Rockwell Automation technical data 1756-TD001

Key features

• Safety memory configured to match primary controller
• Fits the slot immediately right of the primary controller
• Two energy storage module options: removable or non-removable
• Power dissipation 2.5 W, thermal dissipation 8.5 BTU/hr
• Open-style enclosure with 0 to 60 °C operating range

About the Allen-Bradley 1756-L7SP

The Allen-Bradley 1756-L7SP is the Logix L7SP SIL 3 PLe Safety Partner, and Rockwell Automation lists its lifecycle status as Active Mature. According to Rockwell technical data 1756-TD001, its safety memory is configured to match the primary controller. It draws 5 mA at 1.2V DC and 800 mA at 5.1V DC, dissipates 2.5 W (8.5 BTU/hr) and weighs approximately 0.25 kg (0.55 lb). Rockwell gives the slot width as 2, with both modules needed and each one slot, and rates the module as open-style with a T4 temperature code.

What is the 1756-L7SP used for?

The 1756-L7SP is the safety partner for a primary controller and is installed in the chassis slot immediately to its right. Its safety memory is configured to match the primary controller. Rockwell lists the 1756-A4 to 1756-A17 chassis (including K variants) and standard and redundant 1756 power supplies for use with it.

Lifecycle and successor

Active.

Before you order

What to photograph or confirm so the right unit is quoted.

Check that the catalog number on the module label reads 1756-L7SP, and note the series letter and firmware revision shown on the same label. Send us a photo of the label if you need the match confirmed before ordering.