Vari Lite VL500 Wash Luminaires, Руководство по обслуживанию

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M
AINTENANCE
:
2
0 2 . 9 6 8 5 . 0 0 1 0 0 17 -Ju ly- 200 6 49
80V Dimmer Replacement (VL500 80V Only)
Parts:
21.9685.0750 1 EA ASSY, 80V DIMMER
Tools:
• #2 Phillips Screwdriver
WARNING:
Remove power from luminaire before performing maintenance.
To remove and replace 80V dimmer:
Step 1. Disconnect luminaire AC input cable from power source.
Step 2. Remove yoke cover on dimmer side by removing four 6-32x3/8" LG PTB screws.
Step 3. As shown in
Figure 34
, at dimmer, loosen, but do not remove, four 6-32x3/8" PPZ
screws.
Step 4. Carefully remove 80V dimmer. Note that there will be wires connected to dimmer
on the back side.
CAUTION:
All AC wiring is same color. It is a good idea to mark the connector attached to
both the AC Line Input and Load (Output) terminals on the IGBT dimmer with a black marker
before removing so the phasing can be maintained.
Step 5. At dimmer, carefully note (and label before removing) and disconnect following
wiring:
a. 4-position (Dimmer Communication from MCB)
b. Four Faston (Quick Connects - AC Input / lamp Power Output)
Step 6. Remove four 6-32x3/8" PPZ screws from Step 3. Install these screws in replacement
80V dimmer.