Johnson Systems EDI-120 Control Retrofit User Manual

Page 9

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9

Turn on and test the new EDI-120 Retrofit System

• Connect (turn on) the power supply to the EDI Mark VII dimmer rack.

• Verify the operation of the system status LED indicators, LCD display

and programming switches.

• Refer to the programming section of this manual for system

configuration.

• Test the system thoroughly to ensure all wiring terminations are

functioning.

• Verify all of the dimmer control outputs have the correct phase

referencing. If a dimmer control output is patched to the incorrect phase

reference, the dimmer will not dim correctly and will go to full output at

around 1% DMX input. The factory configuration for EDI-120 retrofit

systems is for 3-phase applications, with the dimmer phase reference

patch set at AABBCCAABBCC... For true single-phase applications

with the phases 180° out of phase from each other, set the default

(DEFAULT) menu phase patch to phase patch 2 (ØPATCH2). The

phase patch (Ø-PATCH) menu must be used to configure non-standard

applications or for single-phase applications with the phases 120° out of

phase from each other.

• Verify the fan blower is operating properly. The fan blower should turn

on with between 6-7% DMX or analog control - when DMX or analog

control drops below 6-7%, there is a 5 minute timeout on the fan blower

blower to ensure the dimmers have been cooled sufficiently.

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