Beck, R&J ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESSCONTROL 11-1_9 用户手册

16

INSTALLATION

 

Beck Group 11 drives may be installed in 

any convenient orientation, because the gearing 
does not require an oil bath.  Refer to the outline 
dimension drawings on pages 8–14 for physical 
dimensions and required clearances.

 

When installing a Beck drive in a location 

remote from the damper or valve, be sure it is firmly 
bolted to a flat mounting surface that will not yield 
to the stresses created from operating the device.  
A rigid, vibration-free surface will generally prolong 
the life of the drive’s components.
 

The output shaft of the drive should be parallel 

to the damper or valve shaft, and the linkage 
should be in a plane perpendicular to that of the 
two shafts.  Small misalignments can be tolerated 
if a rod end fitting is used on the driven lever similar 
to that on the Beck crank arm.  The drive’s crank 
arm can be positioned at any angle on the shaft.
 

Beck drives can be furnished with valves 

mounted as unitized assemblies ready for pipeline 
installation.  Beck linkage kits are available for 
convenient field installation (see page 5).

 

Inspect the valve and pipe flanges to ensure 

they are clean.  Be certain that other pipelines in 
the area are free from pipe scale or welding slag 
that could damage the gasket surfaces.
 

Carefully lift the assembly and position the 

valve in the pipeline.  Install and tighten the 
flange bolts according to the valve and/or gasket 
manufacturer’s instructions.

 

Two N.P.T. conduit connections are provided 

for power and signal wiring to the drive.  The 1/2" 
conduit is provided for signal wiring connections, and 
the 1" conduit is provided for power and auxiliary 
switch connections.  A sealant must be used on 
threaded conduit connections to keep moisture out.  
Conduits should be routed from below the drive so 
that condensation and other contaminants entering 
the conduit cannot enter the drive.
 

Power and signal wires must be routed to the 

drive separately and be either shielded cables or 
installed in conductive conduit and/or cable trays.
 

A large, clearly labeled terminal block on the 

top of the drive is enclosed in a separate, gasketed 
metal enclosure.  Terminals will accommodate up 
to 12 AWG (3.31 mm2) wiring.  See page 4 for 
location of the terminal block.

 

Refer to the wiring diagram furnished with 

your Beck drive for proper AC power and signal 
connections.  It is advisable to provide normal short 
circuit protection on the AC power line.  A copy of 
the wiring diagram is shipped with each drive and 
is fastened to the inside of the terminal block cover.  
If there is no wiring diagram available, you may 
obtain a copy from Beck by providing the serial 
number of your drive.
 

Your Beck drive has been supplied to match 

the signal source in your control loop.  If it does not 
match, a 250 ohm input resistor may be added or 
removed to obtain the proper match.  Consult the 
factory for details.
 

For maximum safety, the Beck drive body 

should be grounded.  Use the grounding terminal 
in the wiring compartment of the drive.