3
ELECTRICAL INSTALL ATION
disconnect for the associated circuit. Assure the disconnect
ratings are appropriately sized for the circuit protected (See
Specifications).
2) Circuit Separation
- Two cable entry locations are provid-
ed to aid in maintaining separation of "hazardous live" (typi-
cally mains voltages such as 115Vac and 230Vac) and lim-
ited circuits (typically control voltages less than 30Vrms or
42.4VDC). However, since the SMU's single wiring com-
partment can not absolutely protect against physical contact
between multiple circuits, it is required that all wiring have an
insulation rating of 300v minimum, and a temperature rating
of 80˚C (176˚F) minimum.
3)
Protective Earthing
- Each AOE is provided with a
"protective conductor terminal" which shall be terminated
to the local earth ground potential. This terminal shall be
used to eliminate shock hazard in the unlikely event of inter-
nal insulation breakdown. Select wire size that can carry in
excess of the sum of all circuit's maximum amperage.
1) Permanently Connected Equipment
- Disconnecting
devices shall by included in the system installation. In instal-
lations where multiple circuits are used (i.e. independent cir-
cuits for power input, cycle, count and sound),
individual disconnects are required. The disconnects
shall be within close proximity of the equipment,
accessible to operators, and marked appropriately as the
Figure 2
4) Power Input
- The AOE is designed to accept either 115
VAC or 230 VAC (factory set). Verify the intended voltage
supply is compatible with the voltage configuration indicated
on the electronics and the external nameplate. Connect
power as shown to "L1" and "N" being sure to observe polar-
ity. The AOE features a specific cord connector entry for
power suitable for a cable with a diameter of .17" through
.47". The cord connector can be removed leaving a .875
through-hole suitable for 1/2" conduit fittings.
5) Communications Link
- The AOE features a cord connec-
tor entry for communications suitable for a cable with a
diameter of .17" through .47". The cord connector can be
removed leaving a .875 through-hole suitable for 1/2" con-
duit fittings. Interconnection of the network is performed by
a 2-conductor shielded cable (such as Belden 9322). All
products are interconnected in a daisy-chain, multi-drop
configuration. Order of connection is not important.
Communication networks such as this operate best when
the interconnection has only two ends. "T"s should be
avoided whenever possible. Observe polarity when making
the communication interconnection (D+ and D-). Attach
cable shield in terminal provided.
6) Sensor Compatibility -
When using an HMI2 as the
Operator Interface, SiloPatrol SMUse’s and Flexar guided
wave radar sensors may coexist on a common RS-485 com-
munication buss with an Auxiliary Output Enclosure (AOE)
and the Auxiliary Output Enclosure will function properly.
When using SiloTrack Server Inventory Management
software, the AOE will only function properly when connect-
ed on an RS-485 communication buss configured for the
SMU, HMI2, AOE SYSTEM CONNECTIONS
HMI2
SMU
HMI2
