ACS CANopen Manual
Version 20110928
11 of 44
AC C E L E N S ( AC S ) C AN o p e n
3.4 Mounting Instructions
ACS is a pre-calibrated device which can be put
into immediate operation, upon simple and easy
installation with a three point mount and setting of
preset. Its compact design and installation
“anywhere” makes it versatile.
The ACS inclinometer can be mounted in any
number of fashions, depending on the situation.
The mounting surface must be plane and free of
dust and grease. We recommend hex-head screws
with M4 or UNC bolts #6 (ACS Industrial) and M6
or UNC bolts #12 (ACS Heavy-Duty) for the best
possible
and
secure
mounting.
Use all the 3 screws for mounting but restrict the
tightening torque in the range of 1.5 – 2.5Nm for
the screws. The M12 connectors are to be
perfectly aligned and screwed till the end with a
tightening torque in the range of 0.4-0.6Nm. Use all
the three screws for mounting and also note to use
the same tightening torque for all the screws.
Prior to installation, please check for all connection
and mounting instructions to be complied with.
Please also observe the general rules and
regulations on low voltage technical devices. ACS
Inclination sensors that are based on a MEMS
principle are optimal for fast measurements.
3.5 Bus Termination
If the inclinometer is connected at the end or
beginning of the bus or for higher transmission
baud rates ( ≥50 kB) a termination resistor of
120 Ohm must be used in order to prevent the
reflection of information back into the CAN bus.
The bus wires can be routed in parallel, twisted or
shielded
form
in
accordance
with
the
electromagnetic compatibility requirements. A
single line structure minimizes reflection.
The following diagram shows the the components for the physical layer of a two-wire CAN-bus:
Can Low Wire
CAN High Wire
ACS
Inclinometer
ACS
Inclinometer
120 Ω
120Ω
Other CAN Nodes
PLC
CANopen
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