Cleveland Motion Controls Classic Series DIN Rail Amplifier with Isolated Output MWI-13467 REV CA - Manual (Page 26)

C LASSIC S ERIES A MPLIFIER W / I SOLATED O UTPUTS MAN-13467 REV CA
Page 26 of 30
3.8 A DJUSTMENT T OOLS
Using the correct tools simplifies making the necessary adjustments during the setup procedure. Keep the
following points in mind:
• The Classic Series DIN Rail amplifier utilizes two different potentiometer
styles. The Gain and Zero adjustments located on the front of the amplifier
are more likely to be adjusted over the life of the product. For that reason
they are physically larger and more robust. The industry standard “pot
tweaker” is an ideal tool. The adjustment tool should have dimension on
the order of 0.5mm (.020 inches) blade thickness and be 2.5 mm wide
(0.1inches).
• The adjustments that are usually made only once during initial setup are located
behind a snap on access cover. This less obvious location helps to discourage
alteration by unqualified persons. The infrequent adjustment of these
potentiometers has warranted the use of smaller surface mount technology devices
(SMT). A correspondingly narrower blade is needed (1.4 mm wide, 0.055”inches).
• When changing the internal jumper-switch settings, it is always advisable to change
the settings with the 24 VDC power removed. If this is not possible, it becomes
particularly important to use a non-conductive tool to alter switch positions. Be sure
that jumper-switch settings are fully positioned, to avoid accidentally putting it in
an “in-between” state.
Examples of Force Loss due to Friction at Driven Roll
In this example, only a fraction of the test force is
transferred to the transducer due to drag from the
driven roll. In this example, by rearranging the anchor point
and the force location as well as utilizing the idle
roll, the frictional losses are minimized.