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CD80 RACK DIAGNOSTICS

 

In the "Classic" CD80 rack with 12 Ramp cards and three power supply cards in the bottom cage, catastrophic dimmer failure generally happens in one of two ways. Either an entire phase is lost, or a ramp card goes down. Below is a graphical representation of the power and control layout in a CD80 rack to help you diagnose your problem.

For instance, if all the "red" dimmers are not functioning, the rack is not receiving power on phase "A"; either a power supply card or main power feed failure. On the other hand, if you are missing a group of dimmers, but not the whole phase, it is likely that the problem lies in the Ramp Card. To confirm match the dimmer numbers to the ramp card schedule below to determine which ramp card is the source of the problem.

If you need any help, give us a call at 800-942-0555.

CD80 Rack
 1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70 71 72
73 74 75 76 77 78 79 80 81 82 83 84
85 86 87 88 89 90 91 92 93 94 95 96
 123 Indicates Module on A Phase
 123 Indicates Module on B Phase
 123 Indicates Module on C Phase
 Ramp Card Controlled Dimmers
1  1, 2, 7, 8, 13, 14, 19, 20
2  3, 4, 9, 10, 15, 16, 21, 22
3 5, 6, 11, 12, 17, 18, 23, 24
4 25, 26, 31, 32, 37, 38, 43, 44
5 27, 28, 33, 34, 39, 40, 45, 46
6 29, 30, 35, 36, 41, 42, 47, 48
7 49, 50, 55, 56, 61, 62, 67, 68
8 51, 52, 57, 58, 63, 64, 69, 70
9 53, 54, 59, 60, 65, 66, 71, 72
10 73, 74, 79, 80, 85, 86, 91, 92
11 75, 76, 81, 82, 87, 88, 93, 94
12 77, 78, 83, 84, 89, 90, 95, 96