Decades of Bray's proven success in electric actuation, combined with innovative engineering, has produced the Series 70 electric actuator. The Series 70 features on/off or modulating control and offers many advantages over other actuators including:
UL, CSA and CE certification of most units
Wiring directly to the terminal strip without interference from other components
Simple and unique manual override handwheel system
Lowest profile and lightest weight actuator on the market
Simple finger or screwdriver adjustment of travel limit cams without interference from other components
Highly visible valve status display on most units (Heartbeat)
Series 70 Design Features
Designed like a junction box, the Series 70 offers by far the easiest access to terminal block wiring, cam adjustments and switch installation. Therefore, the time required for field startup and adjustment is greatly reduced, and maintenance can be performed with assured ease and safety.
A. Enclosure
The low profile weatherproof actuator is UL listed Type 4, 4x and IP65. Polyester powder coated die-cast aluminum cover and base, for exceptional corrosion, wear, impact and ultraviolet resistance.
B. High Visibility Position Indicator
Prominently labeled and color coded yellow for open, red for close – the display indicates valve position through the full range of travel. The O ring sealed dome is made of high impact, heat, chemical and ultraviolet resistant clear polycarbonate and designed to withstand caustic wash down ensuring excellent corrosion protection.
C. Captive Cover Bolts
The cover is attached to the base by captive stainless-steel bolts placed outside the sealing area.
D. O-ring Seal for Watertight Enclosure
The O-ring seal between the cover and base provides a weatherproof seal preventing internal corrosion.
E. Manual Override
Standard on all models. The declutch-able manual override prevents handwheel movement during motor operation. When manual operation is desired, pull the handwheel out exposing a yellow stripe around the handwheel shaft. This indicates the handwheel is engaged and manual operation is available.
F. Manual Override Switch
Interrupts power to the motor when handwheel operation is engaged. The manual override operates like a watch adjusting knob. To engage the manual override, simply pull the handwheel to its outermost position. A yellow stripe is revealed to visually indicate manual override engagement.
G. Conduit Entries
Two connections in either NPT or metric threads. One entry is for power, the other for control wiring.
H. Motor Gear
High torque start motor assembly. Designed for fast inspection and maintenance.
I. Output Drive
Self-locking worm shaft and worm gear assembly holds the valve in desired position.
J. Mechanical Travel Stop Bolts
Designed to prevent over-travel in the open or close direction during manual operation. Travel stop bolts include a locknut to prevent loosening, seals to prevent water ingress, and spacers to prevent adjustment between 0° and 90° limit switch settings. Travel stop bolts permit 5° of over travel.
K. Terminal Strip
On standard models, the actuator limit switches are pre-wired to an easily accessible and clearly marked terminal strip for customer wiring. The terminal strip has been placed near the two conduit entries with ample room for running wire leads. An easily accessible green plated ground screw is provided. A wiring diagram is included inside the cover for easy reference.
L. Limit Switch Bracket
Simple and secure design to firmly hold limit switch assemblies for accurate and repeatable valve position feedback.
M. Limit Switch Cams
Bray’s patented CAM design includes standard green (open) and red (close) CAMs which are adjustable with finger touch or screwdriver with no additional tools. Standard factory setting allows 90° travel between open and close positions.
N. Roller Bearings
Provides low friction while securely aligning actuator indicator shaft and CAMs for reliable valve position feedback.
O. Oldham Coupler
Corrects any misalignment between the valve and actuator without introducing side load to the position indicator shaft assembly.
P. Interposing Relay Board (IRB)
Available on 120/220 VAC 50/60Hz On/Off control versions, the IRB prevents back feeding of control from one actuator by another one wired in parallel.
Q. Servo-NXT
• Modulating Controller: 120, 220, 1 phase 24 VDC
• 24V On/Off Controller
• See below for additional details
Ethernet/IP™
Series 70 - Ethernet/IP™
Bray's Series 70 electric actuators now offer expanded capabilities with Ethernet/IP connectivity built directly into the actuator.
Built-in Ethernet/IP Support
Bray's Series 70 NXT is the first device with built in Ethernet/IP connectivity, allowing the device to connect directly to Rockwell PLC's over Ethernet.
Rockwell Studio 5000 Add-on Profile
Bray is the first manufacturer to incorporate Rockwell’s Add-on Profile (AOP) for an EtherNet/IP capable actuator. This AOP enables customers to seamlessly register and quickly configure Bray S70 Actuators into Rockwell PLC’s via the Studio5000 software. As a result, customers automatically see I/O data with meaningful and descriptive names.
Quick Ethernet Connectivity
The Servo NXT control module uses assembly data to set valve position and reports operational characteristicsby transmitting data over the EtherNet/IP protocol directly to the Rockwell/Allen-Bradley PLC for visualization and fault notifications. Another benefit is the device configuration data is stored in the Logix controller, enabling Automatic Device Configuration anytime the device is replaced.
Diagnostics & Reporting
Series 70 Servo NXT Ethernet/IP™ control module provides feeback and diagnostics data over TCP/IP including position, status, alarms, stroke count, motor operating time, motor current, stroke times, directional changes and more, providing actionable increased diagnostics capability and predictive maintenance by detecting deterioration.
Heartbeat Health Monitor
The Servo NXT control module provides real-time status and health via the built in backlit blinking Bray logo.
Exceptional Value
Servo NXT Ethernet/IP reduces complexity during installation and commissioning of the Series 70 actuator. Connect the Series 70 Servo NXT directly by Ethernet, eliminating costly communication protocol converters and gateways. With the Add on Profile (AOP) from Rockwell, Series 70 Actuators can also be quickly configured into Rockwell PLC's via Rockwell Studio5000 software.
