Load Cell 1; Tacho 1 - MERRICK Genetix Safety, Installation, Operation And Maintenance Manual

Feeder Control
If this feature is not enabled (is set for "N"), the Genetix cannot function as a
feeder, but only as a weigher. An example of an application with this feature
disabled is a Belt Conveyor Scale ("Belt Scale"), or a wild flow weigher. In this type
of application, the Genetix has no control of the feedrate or speed, but can simply
measure what goes across the scale.
To function as a feeder, either to control Feedrate or Speed, you must turn this
feature on.

Load Cell 1

Turn this feature on if you have one or more load cells connected to GCM Load
Cell Channel 1. This is the lower of the two load cell connectors on the GCM
board. Note: It is possible to have more than one load cell connected in parallel to
a single load cell channel, but load cells connected like this cannot be resolved
independently. All load cells connected to a single channel are treated as one.
Load Cell 2
Turn this feature on if you have one or more load cells connected to GCM Load
Cell Channel 2. These load cells will be resolved independently of those
connected to GCM Load Cell Channel 1. This is most frequently used when the
scale or feeder has a load cell (or load cells) on both sides of the belt. Using both
channels, the two sides can be resolved independently and load cell problems can
sometimes be identified.
Also, if only one set of load cells is being used, but need to be connected to GCM
Load Cell Channel 2, then this feature must be turned on. In this case Load Cell 1
(see above) would likely be turned off.
Those features that rely on two load cells will only appear in the menus if both
Load Cell 1 and Load Cell 2 are enabled.

Tacho 1

Turn this feature on if you have a tacho (tachometer, encoder, etc.) connected to
Tac1 on the GCM board.
Tacho 2
Turn this feature on if you have a tacho (tachometer, encoder, etc.) connected to
Tac2 on the GCM board. This is frequently used in conjunction with the tacho
connected to Tac1 to detect belt slippage.
Also, if only one tacho is being used, but it must be connected to Tac 2, then this
feature must be turned on. In this case Tacho 1 (see above) would likely be turned
off.
Those features that rely on two tachos (i.e. detection of belt slippage) will only
appear in the menus if both Tacho 1 and Tacho 2 are enabled.
Page 89 of 104