Cleveland Motion Controls Classic Series DIN Rail Amplifier Non-Isolated MWI-13466 REV CA - Manual (Page 21)

MAN-13466 R EV CA C LASSIC S ERIES N ON -I SOLATED A MPLIFIER
P AGE 21 OF 26
3.7 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.