BERNARD CONTROLS
32Pages

Weatherproof Quarter-turn Actuators SQ RANGES

Contents SQ Range Overview > 4 SQ Range Controls > 6 Reliability > 8 Security > 12 User-friendly controls > 14 Hardwired controls > 18 Fieldbus communication > 20 Product Specifications > 22 INTELLI+® Layout > 27 INTELLI+® Configuration > 28 Other Weatherproof Solutions > 30

The complete solution The BC PREMIUM label guarantees “The complete solution”, with many options and possible configurations to fit at best very specific needs. Decades of return on experience from very demanding applications such as nuclear qualified valves actuation have shaped our technical orientations and our commitment to quality and safety. The BC PREMIUM label reflects this long-lasting experience and in-depth expertise, working with the most demanding markets, where the ability to design customized solutions has always been decisive. It is the guarantee of quality and security for...

Quarter-turn actuators are used to operate ball, plug or butterfly valves, dampers, louvers and any equipment with quarter-turn travel. Industrial grade actuators BERNARD CONTROLS has achieved an excellent reputation over the years in the Power, Water & Industry markets thanks to a range of actuators providing the following features: C ompact construction with a high output torque S elf-locking gear train to maintain the position of the valve when the actuator is de-energized Very good resistance to vibrations V ery simple settings - no specific tool required A djustable mechanical travel...

On-Off, Inching / Positioning and Modulating UP TO DEMANDING OPERATIONAL CONSTRAINTS EN15714-2 Standard defines a duty classification to operate the actuator, divided into 4 Classes: A - On-Off , B – Inching / Positioning, C – Modulating & D – Continuous modulating. BERNARD CONTROLS qualifies basic design requirements with key criteria, in order to propose electric actuation solutions according to end users’ process requirements: A s for On-Off & Inching/Positioning, BC emphasizes endurance (number of cycles) as the key criterion to select an actuator, and offers Class A / B actuators...

You can decide on local or remote control to meet the requirements of your particular system and the environment in which the actuators are to be used. BERNARD CONTROLS wide range of control systems enables you to choose the best solution for your needs. SWITCH control The customer provides the control logic to handle all the data received from the actuator electric contacts. The reversing starters are housed in the customer's own enclosure. Integrated control SWITCH control The INTEGRAL+ control system is fully configurable and can perform all actuator control functions, including...

Pulse command Maintained command Local control inhibition (ESD) REMOTE CONTROL Lockable selector knobs Digital display Indicator lights Automatic phase monitoring (3-phase) INTERNAL PROTECTION LOCAL COMMANDS Torque limiter protection  Number of signal relays Motor thermal cut-out Data items Number of fault relays Number of listed faults Internal (with DIP switches) & jumpers External - Local command knob - Fieldbus - Pocket PC - Laptop Travel limit stop Full configuration upload Via: Fieldbus - Pocket PC Laptop Torque/position curve Configuration setting Torque/position setting method...

Reliability Heavy duty mechanical design Trouble-free operation • Gearing is self-locking at all speeds. • Continuous gear drive between motor and valve. • Unaffected by vibration on main mechanical parts Motor thermal protection • A built-in motor thermal switch protects the motor from overheating. Lubrication • The gear design ensures lifetime lubrication by grease, thus reducing periodic maintenance requirements considerably. Powerful motors • Asynchronous motor with high starting torque to unseat the valve. • Excellent starting torque / nominal torque ratio. • On/Off &...

Emergency handwheel • ON-ROTATING HANDWHEEL N In case of loss of power supply or a faulty control system, the presence of a handwheel enables the operator to easily manually drive the valve to any required position. This handwheel does not rotate on all our models. • HANDWHEEL WITHOUT CLUTCH RELEASE Available on SQ20 to SQ80 models, this patented manual override system is made up of a differential geardrive which allows the handwheel to be operated without releasing a clutch beforehand, under all conditions, even when the valve is blocked by the torque limiter. Torque sensors • From SQ20 to...

Reliability Enclosure adapted to field constraints For SQ with integrated and INTELLI+® controls, BERNARD CONTROLS offers reliable solutions adapted to field constraints. Separated control box (option) The separated control box configuration can be specially useful when the actuator has to be mounted: in a difficult access (manhole, in a high position,...) on a highly vibrating device in an excessively high or low temperature area T he maximum distance between control and actuator is 50 meters. Double-sealing protector Two barriers fitted with O-rings insure an optimum protection against...

Reliability INTELLI+® accurate information For SQ with INTELLI+®, thanks to ABSOLUTE SENSORS , which constantly measure the position & torque of your valve, get precise and reliable information. • roven measurement principles P T orque is measured by a dynamometric balance (calibrated springs) offering a high level of precision, an excellent repeatability as well as a very low long-term drift. The short response time of the system allows an early detection of the valve seat reach thus reducing the over-torque applied to the valve. On the two smallest models (SQ6-SQ15), torque monitoring is...

Security Motorised valve protection BERNARD CONTROLS INTELLI+® controls offers key specifications for valve protection. Phase monitoring INTELLI+® includes an automatic phase correction device. In case of 3 phase power supply, whatever the power connection, the actuator always rotates in the correct direction. If one of the phases is not present, the actuator stops automatically and the fault relay drops. Protection of change in direction An automatic delay protects the actuator and valve from all rapid rotational direction changes while limiting the effects of the mechanical pieces in...