MCSE Series Safe Exhaust Control Reliable Double Valves – Operating Instructions (Discontinued)

Overview

The ROSS Controls® MCSE Series is a safe exhaust (dump) control-reliable double valve designed for the highest safety performance levels in pneumatic machine safety circuits. Certified to Category 4, Performance Level e per ISO 13849-1:2015 and Safety Integrity Level 3 (SIL 3), the MCSE Series provides redundant pneumatic control with internal monitoring and safe exhaust function for demanding safety applications.

The MCSE Series uses internal monitoring that continuously evaluates valve element synchronization. The safe exhaust (dump) function ensures that on a fault condition or when de-actuated, downstream pneumatic energy is rapidly and safely vented to atmosphere. Available with analog pressure gauge (G) or digital pressure transducer (T) pressure measurement options, and supporting NPT (N) or BSPP (G) thread forms. Multilingual documentation available in EN/DE/ES/FR/IT/PT-BR/RU/JA/ZN-CH.

Note: MCSE Series valves are discontinued. Contact ROSS Controls at 1-800-GET-ROSS or visit www.rosscontrols.com for current equivalent products.

Key Features

Category 4 PL e, SIL 3 Certification

The MCSE Series achieves Category 4, Performance Level e per ISO 13849-1:2015 and SIL 3 per IEC 61508. Functional safety certification by independent safety authority (HSM 21004 – Sicherheit geprüft / tested safety). CE Declaration of Conformity and certifications available at www.rosscontrols.com.

Safe Exhaust (Dump) Function

The safe exhaust function ensures rapid and reliable venting of downstream pneumatic pressure when the valve is de-actuated or when a fault is detected. This function is essential in applications where residual pneumatic energy in downstream actuators must be safely removed before personnel can access the machine. The MCSE name reflects this safe exhaust capability as a core design feature.

Integrated Pressure Measurement Options

Available with analog pressure gauge (option G), digital pressure transducer (option T), or plugged port (option X). The analog gauge provides local indication; the digital transducer option enables pressure data to be communicated to machine PLCs or safety controllers for automated pressure verification. The MCSE Series uses 2x G1 sintered bronze silencers at exhaust ports.

Technical Specifications

The following specifications are drawn from the official ROSS Controls MCSE Series Operating Instructions (Doc ID 242):

Safety Certification: Category 4, PL e per ISO 13849-1:2015
Safety Integrity Level: SIL 3
Functional Safety Certification: HSM 21004 (Sicherheit geprüft / tested safety)
Voltage: 24 volts DC
Thread Options: BSPP (G) or NPT (N)
Port Size: 1/2 inch
Monitoring: Internal monitoring
Versions: PP (A), PM (B), Start-Button NCNC (C), Start-Button NCNO (D)
Pressure Measurement: Analog Gauge (G), Digital Transducer (T), None/plugged (X)
Port Thread Standards: NPT per ANSI/ASME B1.20.1; G thread per ISO 228-1
Max Mounting Torque: 54 ft-lb / 73 Nm
Height: approx. 167.8 ± 2.5 mm (6.60 ± 0.10") at solenoid area
Silencers: 2x G1 sintered bronze at exhaust ports
Fittings: ROSS MD Series female and male port fittings
Multilingual documentation: EN/DE/ES/FR/IT/PT-BR/RU/JA/ZN-CH

Applications

Safety-Rated Pneumatic Machine Control

The MCSE Series is designed for the highest-integrity pneumatic safety circuits in industrial machinery. Applications include press safety circuits, robot cell interlocks, guarded machine access control, and any safety pneumatic circuit requiring Category 4, PL e, SIL 3 performance. The safe exhaust function makes the MCSE particularly valuable where rapid and complete venting of downstream circuits is required as part of the safe state.

Applications with Continuous Pressure Monitoring

The pressure measurement options (analog gauge or digital transducer) make the MCSE suitable for applications requiring continuous pressure monitoring and verification. The digital transducer option enables pressure data communication to machine PLCs or safety controllers for automated pressure verification as part of the isolation or restart procedure.

Safety and Compliance Standards

The MCSE Series complies with ISO 13849-1:2015 (Category 4, PL e) and IEC 61508 (SIL 3). CE Declaration of Conformity available at www.rosscontrols.com. Port thread torque must not exceed 54 ft-lb (73 Nm) maximum. Port threads: NPT per ANSI/ASME B1.20.1; G thread per ISO 228-1.

Installation and Setup Guide

Mounting and Port Connections

Mount the MCSE valve between the energy source and machine actuators. Use ROSS MD Series female and male port fittings for inlet (Port 1) and outlet (Port 2) connections. Tighten port fittings to a maximum of 54 ft-lb (73 Nm). Ensure the valve is clearly labeled per the product label identification requirements.

Electrical Connections

Connect solenoid and sensor wiring according to the PIN configuration specified in the product key (solenoid A, sensor A combination is standard). Consult the multilingual MCSE operating instructions for detailed wiring schematics and connector pin assignments for the specific version and communication options selected.

Functional Verification After Installation

After installation, perform a complete functional test per MCSE operating instructions before placing the valve in service. Verify both actuation and safe exhaust functions operate correctly. Test the pressure measurement device for proper indication. Confirm status outputs correctly signal fault conditions to the machine control system. Document all test results.

Why Choose ROSS Controls

ROSS Controls has over 100 years of expertise designing control-reliable pneumatic safety valves. The MCSE Series provides the highest available safety certifications with integrated pressure measurement and multiple configuration options. For current replacement products with equivalent or improved specifications, contact ROSS at 1-800-GET-ROSS or visit www.rosscontrols.com.

Download This Document

The official ROSS Controls MCSE Series Double Valves Operating Instructions (Doc ID 242) can be downloaded from the ROSS Controls document library.

PDF Download URL: https://ross-admin-global-us-east.s3.amazonaws.com/production/uploads/document_language_file/file/242/ROSS_MCSE_Double_Valves_Operating_Instructions_RC-MCSE-OI.pdf

Frequently Asked Questions

Q: What safety level does the MCSE Series achieve?

A: The MCSE Series is certified to Category 4, Performance Level e per ISO 13849-1:2015 and SIL 3 per IEC 61508. Functional safety validation has been performed by an independent safety authority (HSM 21004).

Q: What pressure measurement options are available on the MCSE Series?

A: The MCSE Series offers an analog pressure gauge (option G), a digital pressure transducer (option T), or no pressure measurement with plugged port (option X).

Q: What thread standards does the MCSE Series support?

A: The MCSE Series is available with BSPP (G thread per ISO 228-1) or NPT (N thread per ANSI/ASME B1.20.1) port threads depending on the model selected.

Q: What is the maximum port fitting torque for the MCSE Series?

A: The maximum torque for port thread fittings is 54 ft-lb / 73 Nm. Do not exceed this torque during installation.

Q: What languages are MCSE Series operating instructions available in?

A: The MCSE Series operating instructions are available in English (EN), German (DE), Spanish (ES), French (FR), Italian (IT), Brazilian Portuguese (PT-BR), Russian (RU), Japanese (JA), and Chinese (ZN-CH).

Q: Is the MCSE Series still available?

A: The MCSE Series is a discontinued product. Contact ROSS Controls at 1-800-GET-ROSS or www.rosscontrols.com for current products with equivalent or improved safety performance.

Q: Can the MCSE Series be configured with a start button?

A: Yes. Versions C (Start-Button NCNC) and D (Start-Button NCNO) include a start button option, in addition to standard PP (version A) and PM (version B) configurations.

Q: What does MCSE stand for?

A: MCSE refers to the Modular Control Safe Exhaust design principle – providing modular configuration options with a core safe exhaust (dump) function for rapid downstream venting on de-actuation or fault.