Johnson-systems EDI-120 Control Retrofit Manual do Utilizador descarregar pdf (Página 5)

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Installation

•

Disconnect (turn off) the power supply to the EDI Mark VII dimmer rack(s).

WARNING! Verify all power is disconnected (turned off) before proceeding.

Removal of the old EDI Control Module

• Remove the four (4) mounting screws securing the EDI Mark VII control

module.

• Carefully pull the control module forward until all of the rear wiring

connections are visible. Do not disconnect any wiring at this point.

• If you are not familiar with the EDI Mark VII control module electronics

and wiring, it is strongly advised that you take a few minutes to inspect

the OEM (Original Equipment Manufacturer) wiring (P1 through P6). If

the cables aren’t already labeled, label them using a permanent marker

(Sharpie).

P1 contains the AC power supply conductors (Neutral, Phase A, Phase

B and Phase C) used to power the control module, as well as the low

voltage fan control wiring (positive DC voltage control and common).

Observe the location of the P1 connector and compare it to the location

of the P1 connector on the EDI-120 retrot. If the P1 connector is

located on the opposite side, refer to the installation of the new EDI-120

retrot system for details.

On some earlier versions of EDI Mark VII dimmer racks, the fan

control was sensed from the house control inputs, and the fan control

wiring does not come through the P1 connector. If this is the case, the

fan control will need to be rewired from the P1 connector to the fan

SSR. More information regarding this modication is provided in the

“Installation of the new EDI-120 retrot system” section of this manual.

P2 contains the eld wiring connections for DMX and analog control.

NOTE: The P2 connection is obsolete when the EDI-120 retrot control

module is installed, and all the eld wiring must be terminated

on the back of the EDI-120 retrot control module. Refer to the

installation of the new EDI-120 retrot system for more details.

P3 contains the PWM output control signals for dimmers 1 through 36.

P4 contains the PWM output control signals for dimmers 25 through 60.

P5 contains the PWM output control signals for dimmers 61 through 96.

P6 contains the PWM output control signals for dimmers 85 through 120.

• All of the internal OEM wiring must remain intact to complete the retrot.

Compare these connections to the ones on the back of the EDI-120

retrot control module. Do not disconnect any wiring until you are

completely satised with how easy this is going to be.

NOTE: Never pull directly on the wires to remove connectors.

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Johnson-systems EDI-120 Control Retrofit Manual do Utilizador Página 5