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Fault Diagnosis

5-3

 Revision 0.1 – 3 June 1999

FP12  DIMMER

USER MANUAL

5.6

Fault finding guide

FAULT SYMPTOM

POSSIBLE CAUSE

REMEDY

Breaker trips when desk channel

flashed to full or near full

Large incandescent load

Excessive load

Use console preheat facility

Reduce channel loading

Breaker trips after prolonged

operation

Excessive load

Lamp or wiring fault

Reduce channel loading

Check lamps and wiring

Breaker trips immediately when

channel is driven

Output short

Triac short

Check lamps and wiring

Factory service

One channel flickers when dimmed

Same load flickers on another

Channel

DMX source problem

Faulty dimmer channel

Insufficient or very inductive load

Softpatch another console fader

Service console

Factory service

Connect >100W incandescent

lamp in parallel

Radio interference

Faulty EMC filtering

Factory service

All Channels flicker when dimmed

Incorrect DMX protocol / wiring

Unterminated DMX line

Mains control tones exceed limits

Replace DMX source / wiring

Set Terminate switch on last

DMX receiver to TERM

Contact factory

Signal LED flickers

Faulty DMX wiring/connections

Faulty console

Faulty dimmer rack

Repair

Repair

Factory service

Status LED flashing

Over-voltage

Over-temperature

Check mains connection/supply

Improve dimmer cooling

Status LED on continuously

Recent over-voltage

Recent over-temperature

DMX control errors

Software failure

Check mains connection/supply

Improve dimmer cooling

Check DMX wiring, console

Factory service

No signal at DMX Loop output

Terminate switch set to TERM

Set Terminate switch to LOOP

Summary of Contents for FP12

Page 1: ...3...

Page 2: ...d does not represent a commitment on the part of the vendor JANDS ELECTRONICS PTY LTD shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained i...

Page 3: ...ring up 3 2 3 4 Connecting loads 3 2 3 5 Connecting DMX 512 input 3 2 3 6 DMX Termination 3 2 3 7 Power up sequence 3 2 4 0 Dimmer Operation 4 1 Operating modes 4 1 4 1 1 DMX mode 4 1 4 1 2 Test mode...

Page 4: ...0 Technical Data and Specifications 8 1 DMX connector pin outs 8 2 8 2 DMX bank allocations 8 2 8 3 Mains wiring colour codes 8 3 8 4 Internal Mains Wiring 8 3 8 4 1 Normal Three Phase plus Neutral O...

Page 5: ...ignal to the dimmer is via a standard DMX 512 socket at the front panel while the dimmed outlets and three phase power entry are located on the rear panel Features 12 x 2 4KW dimming channels DMX 512...

Page 6: ...ensure the fault has been cleared before resetting 3 Bank select switches These switches select the DMX start bank and the Test functions 4 DMX IN LED A red LED indicates the presence of DMX signals...

Page 7: ...ected by fuses or circuit breakers at not more than the rated maximum The power plug should be connected to an appropriately rated socket outlet The plug s retaining lock ring if present must be screw...

Page 8: ...P The red DMX IN LED indicates the presence of DMX signals The DMX receiver input is protected against extreme over voltages across any input pins and from any input to chassis The terminating resisto...

Page 9: ...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 s...

Page 10: ...4 Full 48 Channel 5 Full 49 Channel 6 Full 50 Channel 7 Full 51 Channel 8 Full 52 Channel 9 Full 53 Channel 10 Full 54 Channel 11 Full 55 Channel 12 Full 56 59 12 Step Chase Full Table 4 2 TEST MODE I...

Page 11: ...er voltage condition is present and the dimmer outputs will be off until the over voltage or over temperature condition is removed 2 When the status LED is on continuously one or more of the following...

Page 12: ...is quick enough to prevent damage to the output devices In some circumstances however a triac failure may be experienced although these devices are usually quite reliable and robust If a triac does fa...

Page 13: ...m the dimmer will automatically shut down the output drive The fan will continue to cool the heatsink during the shut down period The electronic shutdown is backed up by a buried cutout which shuts do...

Page 14: ...ch another console fader Service console Factory service Connect 100W incandescent lamp in parallel Radio interference Faulty EMC filtering Factory service All Channels flicker when dimmed Incorrect D...

Page 15: ...ntake at the right and air exhaust at the left when viewed from the front All racks must have adequate ventilation for the side to side airflow of the dimmers Fully enclosed racks will cause overheati...

Page 16: ...immer by disconnecting the power cable or locking off the mains supply isolator Remove the lid Blow clean the fan and internals with compressed air from left to right DO NOT spin the fan with compress...

Page 17: ...X Input 5 pin AXR male female Test Function Level Individual Channels 100 Group Channels 10 steps LED Indicators DMX IN STATUS Phases A B and C Output Protection 12 x 10 Amp thermal magnetic circuit b...

Page 18: ...nk allocations BANK CHANNELS BANK CHANNELS 00 Off 22 253 264 01 1 12 23 265 276 02 13 24 24 277 288 03 25 36 25 289 300 04 37 48 26 301 312 05 49 60 27 313 324 06 61 72 28 325 336 07 73 84 29 337 348...

Page 19: ...mains phases labelled A1 A2 A3 and three poles for the mains neutral N1 N2 N3 The three neutral poles are bridged by a copper link with the incoming mains neutral connected to terminal N2 8 4 2 Single...

Page 20: ...2 and N1 The third incoming active is connected to terminals A3 and N2 WARNING This connection is ILLEGAL in Australia Europe and the U K This connection renders the output socket s neutral pins LIVE...

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