Bently Nevada Asset
Condition Monitoring
ADAPT 3701/55 Emergency
Shutdown Device (ESD)
Advanced Distributed Architecture Platform
Technology - ADAPTBaker Hughes Bently Nevada™ Advanced DistributedArchitecture Platform Technology, or ADAPT 3701, is a family ofcompact, high performance safety, machinery protection andcondition monitoring solutions targeted at specific assets andapplications.
The ADAPT 3701 family is targeted at machines ranked as
critical to highly-critical where a safety system is necessary
and a permanent on-line protection and condition monitoring
system is recommended.

3701/55 Emergency Shutdown Device
Description
ADAPT ESD, or 3701/55 Emergency Shutdown Device, is asafety PLC with a graphical logic programming interface andintegrated overspeed detection designed for emergency
shutdown of rotating machinery such as steam, gas, andhydro turbines, expanders, and other process equipment.
ADAPT ESD is a compact, standalone, triple-redundant, safety
shutdown device that is designed to meet a broad range ofuser scenarios and applications. The design offers a robustelectrical and mechanical package with careful attention toreliability and availability as well as extensive self-diagnostics
and compliance to industry standards. Owners and operatorsof critical machinery will benefit from ADAPT ESD’s compliancewith global industry standards such as; API 670, API 612, andIEC 61508 and SIL3 certification.

3701/55 ESD is configured and validated with a version of Bently
Nevada Monitor Configuration (BNMC) software specific to theADAPT ESD safety system. BNMC offers a simple and powerfulconfiguration, graphical logic programming and testing
environment which results from extensive user interaction
studies with endusers, OEM’s, and our field services team.
Integration with unit controls, HMI’s, or other plant automation
systems is via Ethernet using Modbus TCP.

Key FeaturesBenefits•	Emergency Shutdown Device with integrated OverspeedDetection System (ODS).

•	Independent, standalone, triple redundant safety PLC andoverspeed detection system.

•	IEC 61508 SIL 3 Certification.

•	Supports on-line testing.

•	Triple redundant processor modules (CPU modules).

•	Simple but powerful graphical user interface for developingand testing trip logic.

•	Triple redundant relay output modules with 5 relays permodule. Each relay module has a dedicated Protection Fault
Relay, 2 relays programmable as part of a 2oo3 set or as
independent 1oo1, and 2 independent 1oo1 relays.
•	2 sets of 3 overspeed sensor inputs configurable for magnetic
speed pick-ups or eddy current proximity probes.

•	New generation platform ensuring robust, long term
lifecycle support.
•	Single supplier for both your vibration monitoring systemand overspeed/ESD.

•	20 Discrete Inputs.

•	Compact, bulkhead mount, package enabling convenientand flexible installation.

•	12 inputs configurable as 4-20 mA analog inputs ordiscrete inputs.

•	Compliance with industry standards – API 670 (5th Ed),API 612, IEC 61508.

•	Up to 500 logic blocks.

•	Can be supplied as a component to be integrated with thecustomer’s overall safety shutdown system or along with acomplete upgrade of your safety shutdown system.

•	No more than 2 ms logic execution time and 8 ms relay
response time for 10 ms response from input to relay output.
•	2oo3 or 3 independent 1oo1 ODS configuration.
•	Redundant 24VDC Power Inputs.
•	Six 4-20 mA outputs, two from each processor module
proportional to the configured full scale speed range.

•	Global sales, services, and technical support, 24/7, withregional coverage and response time that only GE Bently
Nevada can offer.

•	Two 10Base-T/100Base TX RJ45 Ethernet connections perprocessor module.
•	Hardware configuration lock prevents changes whenin run mode.
•	Modbus TCP communication.
•	Regulatory Compliance and Certifications: EU: LVD & EMC
and machinery directive pending SIL, North America General
Safety, RoHS compliant, (North America Zone 2 Haz Loc, and
ATEX Zone 2 planned).

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