Cleveland Motion Controls ULTRA ISC CANTILEVER TRANSDUCER CLTSCM REV AA - Manual (Page 31)

MAN-70445-0 R EV AA U LTRA S ERIES ISC C ANTILEVER T RANSDUCER T ECHNICAL M ANUAL
4.7 C HECKING T HE T RANSDUCER M OUNTING
Before preparing to apply force to the transducer(s) and calibrating the tension controller, inspect the load
cell to confirm that it is oriented and mounted in accordance to the installation instructions. Common
problems include:
 Failure to mount transducers on flat (machined) surface.
 Shaft length or roll weight that exceeds allowable limits.
 Fastener torque either excessive or insufficient.
 Transducer mis-oriented so that the axis of sensing is not true to the applied force vector
(bisector of the wrap angle).
 The transducer is positioned in the web path so that the wrap angel is not constant.
For more information about proper practices for applying calibration, refer to section 4.11 in this
document.
4.8 P OWER - UP AND T ESTING
4.8.1B EFORE A PPLYING P OWER
Before applying power, check the wiring to the amplifier. Pay particular attention to the following:
 Double check the transducer cabling to ensure that the 24V power supply is within limits
and polarity is correct.
 Use an approved anti-static wrist strap when adjusting any potentiometers on the amplifier.
 Use the appropriate tool when making any adjustments to the potentiometers on the
amplifier. Damage to the circuitry may occur if excessive force is used or a conductive tool
accidentally contacts internal voltages.
4.8.2P OWER A PPLICATION
As soon as practical after connecting power to the ISC, verify that the 24 VDC supply is operational and
not overloaded by any mis-wiring. Use a DC voltmeter to confirm that the supply polarity is correct and
that the voltage is within the prescribed limits. Promptly identifying any over-voltage condition can help
minimize potential damage to the circuitry internal to the transducer.
With 24 VDC supply confirmed, check the DC output voltage reported by the ISC and see if it responds as
expected when small test forces are applied to the Tension Transducer.
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