Dimmer Operation
4-1
Revision 0.1 – 3 June 1999
FP12 DIMMER
USER MANUAL
4.0
Dimmer Operation
This section assumes the dimmer has been correctly connected to three phase power and
a source of DMX-512 control signal.
4.1
Operating modes
The FP12 has two operating modes:
1.
DMX mode: the dimmer is controlled from an external DMX-512 control
console,
2.
Test mode: the dimmer is controlled by the internal microprocessor.
4.1.1
DMX mode
In this mode, the DMX Bank Select switches are used to select which bank of 12
channels from the 43 possible DMX-512 banks will control the FP12.
See Table 4.1 (below) for a list of banks and their corresponding Channels.
Decide which bank of channels is required, and rotate the selector switches to the
desired setting. For example, if DMX Channels 25 to 36 are desired (ie. bank 3), set
selectors to “03”. FP12 Channel #1 is now DMX Channel #25. A FP12 with this
setting ignores DMX Channels 1 to 24 and 37 to 512, and only decodes Channels 25 to
36 as it’s dimmer information.
Setting the Selectors to “00” puts the dimmer in a standby state, with all channels off.
Bank
Channels
Bank
Channels
Bank
Channels
Bank
Channels
00
Outputs Off
11
121 - 132
22
253 - 264
33
385 – 396
01
1 - 12
12
133 - 144
23
265 - 276
34
397 – 408
02
13 - 24
13
145 - 156
24
277 - 288
35
409 – 420
03
25 - 36
14
157 - 168
25
289 - 300
36
421 – 432
04
37 - 48
15
169 - 180
26
301 - 312
37
433 – 444
05
49 - 60
16
181 - 192
27
313 - 324
38
445 – 456
06
61 - 72
17
193 - 204
28
325 - 336
39
457 – 468
07
73 - 84
18
205 - 216
29
337 - 348
40
469 – 480
08
85 - 96
19
217 - 228
30
349 - 360
41
481 – 492
09
97 - 108
20
229 - 240
31
361 - 372
42
493 – 504
10
109 – 120
21
241 - 252
32
373 - 384
43
505 – 512
Table 4.1
DMX bank / Channel allocation
4.1.2
Test mode
In this mode, the FP12’s internal controller is used to drive the dimmer channels. It is
accessed by setting the Selector switches to banks between “44” and “99”. No DMX
control is necessary, but a control signal may be left connected if desired.
Summary of Contents for FP12
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