ETA Systems ETA-ECM20M Manual - Página 3
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Imprimir páginaINTRODUCTION
Thank you for purchasing the ETA Systems Electrical Control Module Raceway system. This manual is divided up into two main
sections, ETA-RACEWY6 housing and the ETA-ECM20/ETA-ECM20M modules. This manual will explain which ECM module to choose
for your application, how to configure it, and how to wire it. Note: For your safety all electrical wiring must be done by a qualified
electrician. Many of the items required to connect to the raceway system are standard electrical industry components.
There are three segments for a remote 120V AC Mains sequenced system to fully operate.
1. The Electrical Control Modules (ECM) turn ON or OFF the 120V AC Mains to the devices that are plugged into it.
2. ETA-RACEWY6 housing supports and encloses the ETA-ECM20/ETA-ECM20M modules for safety.
3. An ETA-ECS6RM controller activates the ECM modules. This manual covers the ECM modules and the ETA-RACEWY6.
The ETA-RACEWY6 is the housing that supports up to six ETA-ECM20 or ETA-ECM20M modules. There are four ½" and ¾" dual
knockouts that support standard electrical conduit components for wiring 120V AC mains into the raceway housing from the electrical
panel. If six sequenced sections are not needed there are two ECM-3BP blank plates included to cover the unused ECM module slots.
Other blank plates are available as an accessory item.
The ETA-RACEWY6 can be mounted into most racks that have at least 60" internal height. The raceways have breakaway mounting
tabs that make it convenient to secure the raceways in most applications.
The ETA-ECM20/ETA-ECM20M is an Electrical Control Module (ECM) 20A Power Conditioner and AC Spike Suppressor module that is
designed to be placed next to an ETA-ECS6RM Controller or up to 1000 ft away.
Features of the ECM modules vary allowing the customer to choose what is best for their installation. All ECM modules feature AC
spike suppression. AC Spikes, or Transients, are commonly caused by lightning storms or utility power plant grid switchovers. The
amount of energy that can be injected into the power system can be immense with voltages reaching 6kV or amperage peaks of
3000A. These spikes are very fast and usually only last for a very short period of time. To protect against this potential problem
incoming AC Mains have special suppression circuitry to eliminate the unwanted energy. This circuitry is very fast and can suppress
unwanted energy within a nanosecond, while sustaining the suppression for up to 2 milliseconds, thus ensuring virtually trouble free
protection. High and low AC Main line voltages are another major contributor to equipment failures. The ECM modules support EVS
circuitry which enables the module to be shut off during low and high AC Line conditions.
The ETA-ECM20M also features noise filtering for removing unwanted Radio Frequency Interference (RFI) that is commonly introduced
into the AC lines by nearby radio transmitters or wireless products. EMI filters are incorporated to reduce noise from Electromagnetic
Interference (EMI) generated by items such as electric motors, switching power supplies and lightning. The benefit of these filters can
be seen on video products or audibly by reducing static pops and external signal interference.
High line can also be known as surges. Surges usually are a slower steady state rise in voltages ranging from 128VAC and up. They
can be caused from fluctuations from the utility company's power lines, or industrial equipment turning on and off, and is on the same
power leg of the building's incoming AC.
Low line is also known as brownouts. This happens when the AC Mains drops below 107VAC. Most of the time it is caused by the
utility company not being able to supply enough power during heavy utility consumption time periods, such as heat waves. Another
factor would be from voltage drops in AC lines due to long transmissions. The ETA-ECS6RM will inform you if any of these conditions
occur. Extreme variances in Unstable AC Mains voltage are one of the main reasons for equipment failure.
The ETA-ECM20 does not support the same current monitoring or EMI / RFI Filter feature as the ETA-ECM20M, ETA-20SH and the
ETA-15SH models. However, it does support AC Spike and Surge Suppression, AC Mains Voltage monitoring, EVS circuitry and Remote
Activation. Refer to selected ECM Module for full details.
ETA-RACEWY6
Electrical Housing for ETA-ECM20/ETA-ECM20M
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
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Specifications are subject to change without notice.
etasys.com