Required Tools
Anti-static wrist strap
Small slotted screwdriver
Wire stripper and wire cutter
Adjustable wrench
Installing the Equipment
The following procedures are general steps for a typical installation. For speci c instructions, including safety warnings and
safety icon descriptions, visit the Bullhorn RMU Support site (www.support.aiworldwide.com/products/bh2).
WARNING:
To prevent electrostatic discharge (ESD) damage when handling electronic equipment, always wear an
anti-static wrist strap attached to an unpainted, grounded metal object. Ensure the wrist strap has maximum contact
with bare skin.
Before beginning any wiring to the RM4150, RM4150S, RM4151, or RM4151S, ensure that power has been
WARNING:
turned off at the recti er.
NOTE:
For safety precautions for wiring power supply and unit inputs, refer to the RM4000 Series User Guide
available from the Bullhorn RMU Support site.
1
Select Location for Unit
1 If placing the unit within recti er, nd a secure
location. If placing the unit on bottom of recti er,
place either to the front or back to ensure that unit
does not restrict air ow.
RM4150 Placed in
Recti er
2 If mounting the unit inside the recti er, attach the included
magnetic mounting disks to each corner and secure unit to
side OR drill holes in side and secure unit with screws and
bolts in each corner.
RM4150 Mounted
to Recti er Door
See page 3 for instructions on mounting an alternative
NOTE:
waterproof enclosure for the unit.
WARNING:
If wires are to be buried or covered, use conduit to protect the wires.
© 2021 American Innovations, Ltd.
RM4150, RM4150S, RM4151 & RM4151S
Installation & Con guration
Wire to connect power supply
to voltage supply
Voltmeter
Tools to prepare mounting surface
1 Connect unit Ground to either
2 Connect input devices and relay (for
1 of 3
Quick Reference Guide
Hardware to mount enclosure
Wire nuts
Windows
Bullhorn
software
USB mini-b cable
2
Connect Ground and Input Wires
IMPORTANT:
Only ground
the RMU if it is mounted on
a structure other than the
recti er.
recti er ground or to the
recti er frame.
interruption only) to input channels
using the following information:
SWITCH OUT: connect to relay
(interruption only).
DIGITAL CH 1 & CH 2:
non-isolated inputs that support
digital dry contact closure input
devices. DIGITAL CH 1 can also
be used as a pulse counter
accumulator. DIGITAL CH 2 can
be used as an accumulator reset.
ANALOG CH 1 - CH 5: isolated
inputs that support analog ±150
V DC, 150 V AC, 4 - 20 mA with
external resistor, or active digital.
Laptop PC
®
Tools con guration
®
Enclosure Bottom View
POWER Switch
Ground
Input Channels
(Continued on back.)
Part No. 122198-000, Rev. 6
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