Jands FP12 User manual

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Contents ii
Revision 01 – 3 June 1999 FP12 DIMMER USER MANUAL
EMC COMPLIANCE
This product is approved for use in Europe and Australia/New Zealand and conforms to the following
standards:
European Norms Australian / New Zealand
Standards
EN 55014-1 AS/NZS 1044
EN 55014-2 AS/NZS 4251.1
EN 60335-1 AS/NZS 3350.1
To ensure continued compliance with EMC Directive 89/336 and the Australian
Radiocommunications Act 1992, use only high quality data cables with continuous shield, and
connectors with conductive backshells. Examples of such cables are:
DMX: Belden 8102 100% Aluminium foil screen, 65% Copper braid.
JANDS ELECTRONICS PTY LTD 1999
All rights reserved
DISCLAIMER
Information contained in this manual is subject to change without notice and 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 in this manual.
It is recommended that all service and repairs on this product be carried out by JANDS
ELECTRONICS PTY LTD or its authorised service agents.
JANDS ELECTRONICS PTY LTD cannot accept any liability whatsoever for any loss
or damage caused by service, maintenance or repair by unauthorised personnel, or by
use other than that intended by the manufacturer.
JANDS FP Series dimmers must only be used for the purpose they were intended by
the manufacturer and in conjunction with this operating manual.
Disconnect mains power when not in use.
Manufactured in Australia by:
JANDS ELECTRONICS PTY LTD ACN 001 187 837
40 Kent Rd
Locked Bag 15
Mascot NSW 2020
Australia
PHONE: [phone]
FAX: [phone]
INTERNET: www.jands.com.au

Contents ii
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
Table of Contents
1.0 Introduction
2.0 Equipment Description
2.1 Front panel layout ...............................................................................................2-1
3.0 Getting Started
3.1 Connecting power...............................................................................................3-1
3.2 Setting the mains frequency.................................................................................3-1
3.3 Powering 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............................................................................................. 4-1
4.2 Status LED.........................................................................................................4-3
5.0 Fault Diagnosis
5.1 Output protection................................................................................................ 5-1
5.2 DMX faults.........................................................................................................5-1
5.3 Phase fault indication...........................................................................................5-2
5.4 Thermal protection..............................................................................................5-2
5.5 Over-voltage...................................................................................................... 5-2
5.6 Fault finding guide ..............................................................................................5-3
6.0 Installation
6.1 Dimmer Ventilation............................................................................................. 6-1

Contents iii
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
7.0 Maintenance
8.0 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 Operation.......................................... 8-3
8.4.2 Single Phase Operation .........................................................................8-3
8.4.3 Delta Supply Operation......................................................................... 8-3

Introduction 1-1
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
1.0 Introduction
The JANDS FP12 is a high quality, rugged, 12 channel, 2.4kVA per channel (10A/240V)
dimmer rack specifically designed for demanding touring and theatre applications.
The FP12 can be powered from three-phase or single-phase mains supplies. The FP12
features opto-controlled Triacs and medium risetime chokes protected by
thermal/magnetic circuit breakers. The FP12 uses microprocessor-based digital control
for accurate dimming and in-built test functions. Digital control is via standard DMX-512
protocol.
The FP12 features toroidal output chokes. These chokes provide excellent high
frequency noise suppression and, together with the temperature-controlled fan, low
acoustic noise.
Control signal 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 digital control protocol
•DMX terminating switch
•Suitable for both touring and permanent installations
•Soft turn on characteristic
•Low acoustic/electrical noise
•Toroidal output chokes
•Circuit breaker protection of output devices
•Three mains phase indicator LEDs
•Built in test facilities
•Dimmer curve set for linear relationship between the control input and output power
•Compensates for fluctuations in the mains supply voltage, and filters superimposed
mains control tones, ensuring a constant light output and increased lamp life
•Rack mounted (3 rack units)
•Microprocessor control
•Temperature-controlled cooling fan
•Temperature monitor and thermal cut-out
•Dimmer will hold last DMX value should control data be interrupted
•50/60Hz operation
•CE and C-Tick approved

Equipment Description 2-1
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
2.0 Equipment Description
2.1 Front panel layout
Refer to Fig 2.1 (below) for a description of the front panel controls.
1. Channel output sockets (rear panel): The twelve output sockets are each rated at
10 amps.
2. Channel circuit breakers: If a breaker trips during use 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. If there is no
DMX signal, the LED will flash at a rate of approximately 2 seconds on - 2 seconds
off.
5. STATUS LED: A red LED flashes in the presence of a fault. In normal operation
this LED should be off.
6. PHASE LEDs: Three blue LEDs (one for each phase) indicate that the three phase
mains supply is available.
➀ ➁ ➂
➃ ➄
➅
Figure 2.1FP12 front panel layout

Getting Started 3-1
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
3.0 Getting Started
The FP12 would normally be rack mounted before any wiring is terminated. Refer to
section 6.0 Installation for installation details.
3.1 Connecting power
The FP12 dimmer is supplied with a flexible cable fitted with a multipin power plug for
the connection of incoming mains power. The FP12 is ideally powered from a three
phase star (four wire plus earth) supply. If the dimmer power cable is damaged it must be
replaced with another cable available from JANDS or its service agents.
The upstream supply must be protected 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 screwed home.
WARNING
DAMAGE TO THE PLUG MAY OCCUR IF THE RETAINING LOCK RING IS
NOT PROPERLY SECURED.
Ensure adequate mains plug access once the dimmer is installed.
3.2 Setting the mains frequency
The FP12 can be configured to run from either 50Hz or 60Hz mains power. As supplied
from the factory the dimmer is configured for 50Hz.
The dimmer operating frequency may be changed as follows:
•Disconnect the mains supply to the dimmer
•Remove the lid
•Change the three jumpers on the main circuit card as shown in Figure 3.4
•Replace the lid and reconnect power
Figure 3.4: 60Hz jumper locations
60
50
50
60
50
60

Getting Started 3-2
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
3.3 Powering up
Turn on the power and check that the three PHASE indicator LEDs are on before
connecting any loads. If any of the PHASE LEDs are dim or off, power down and
remedy the fault before trying again. Refer to section 5.3 Phase fault indication.
If all is well, power down and connect loads.
3.4 Connecting loads
The standard output connectors are twelve Clipsal 415P 10 amp sockets (export models
may differ from these configurations). Ensure any plugs are pushed firmly into their
sockets.
The FP12 will drive most incandescent loads as well as pinspots, fans, and dimmable
fluorescent tubes. The load should be within the specified limits.
3.5 Connecting DMX-512 input
The input signal to the dimmer should conform to the USITT DMX-512 1990
specification. The DMX input connects to the frontpanel socket labelled “DMX IN”. The
DMX signal may be daisy-chained to the next dimmer via the connector labelled
“LOOP”.
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” resistor is not protected against over-
voltages.
3.6 DMX Termination
In any DMX-512 system the signal should be terminated at the last dimmer or receiver in
the chain, and the FP12 can provide this function. To terminate the DMX signal, set the
frontpanel slide switch from “Loop” to the “Term” position. Note that in this position no
signal is present at the “Loop” connector.
3.7 Power-up sequence
When powering up lighting systems, the following sequence should be used:
1. First the control desk;
2. Then any softpatches and/or DMX receivers;
3. Finally the dimmers, preferably one at a time starting from the first dimmer rack in the
DMX loop.
This procedure minimises the risk of lamps and fixtures responding to any false DMX
data produced by control desks or ancillary equipment at turn-on (producing the lighting
equivalent of an audio “thump”) and prevents damage to lamps, dimmers, and other
controlled devices.
Use the reverse procedure when powering down.
Disconnect mains power when not in use.

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.

Dimmer Operation 4-2
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
This mode is split into two sections with individual Channel testing from banks “44” to
“59” and group channel testing from banks “60” to “99”. The first section is not level
controllable and each channel is driven to full.
Refer to Table 4.2.
Selector Channel Output
Switches Under Test Level
44 Channel 1 Full
45 Channel 2 Full
46 Channel 3 Full
47 Channel 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 – Individual Channel Selection
The second section is level controllable, the level being set by the right hand Selector
switch. The left-hand Selector switch changes the grouping. Refer to Table 4.3.
Selector Switches Channel Channel Left
Right Grouping Level
6 0-9 Channels 1-4 ON (Phase A) 0-9
7 0-9 Channels 5-8 ON (Phase B) 0-9
8 0-9 Channels 9-12 ON (Phase C) 0-9
9 0-9 Channels 1-12 ON 0-9
Table 4.3 TEST MODE – Group Selection