Johnson Systems EDI-120 Control Retrofit User Manual
Page 9

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.