Cleveland Motion Controls WebPro Motor Powered Unwind Tension Controller MWP – 12662 - 1 REV BA - Manual (Page 9)

AO-70172
8
Revision BA
WebPro Motor Powered Unwind Tension Controller
Transducer Connections
The Controller may be used with one half bridge transducer, two half bridge transducers, one full bridge
transducer or two full bridge transducers. The strain gauges may be semiconductor with 5.6V or 10V DC
excitation, each half bridge resistance 230
S minimum; or foil with 10V DC excitation, each bridge
resistance 350 S minimum.
For systems with a single transducer connect the transducer to TB3 Left and disable the Right
transducer, see Machine Parameters; Right transducer - Disabled/Enabled.
Intrinsically Safe Transducer Connections for Hazardous Area Installations
CMC Inc tension transducers can be
located in a hazardous area to provide an
Intrinsically Safe installation to EN 50039
when a proprietary Zener Barrier module,
Part Number 4503, is used. Tension
transducers are passive components and
are classified as simple apparatus by EN
50014. Strain gauge transducers (load
cells) will be damaged if subjected to the
500 volt insulation test required by EN
50020. To comply with Intrinsic Safety
regulations the body of the transducer
must be bonded to the I.S. earth using 4
square millimetre green/yellow insulated
cable.
Consult CMC Inc for connections to
ACDF transducers in I.S. installations.
NOTE It is the responsibility of the user to ensure that all relevant safety regulations are complied with.
The integrity of all connections particularly the I.S. earth should form part of any maintenance procedure.
WHITE
BLACK
WHITE
BLACK
Cleveland-Kidder Transducers ACDF Transducers
WHITE
BLACK
WHITE
BLACK
I.S. connections for Cleveland-Kidder transducers