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Information contained in this manual is subject to change without notice and does not represent a commitment on the part of the vendor. JANDS 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.
Introduction 1.0 Introduction The JANDS WMX is a high quality, rugged, 12 channel, 2.4kVA per channel (10A/240V) dimmer rack specifically designed for contracting / theatre applications. A separate wall bracket simplifies the installation process. It allows cabling to be routed to the dimmer location prior to the installation of the actual dimmer units, providing the contractor with the ability to fit off the dimmers when the site is secure.
Figure 2.1: (Clockwise From Top Left) Control/Breaker Panel, Socket Outlet Panel, Bottom Panel Panel layout 1. CHANNEL OUTPUT SOCKETS: 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. WMX SERIES DIMMER OPERATING MANUAL...
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This cover should remain in place for safety reasons unless using the hole for cable access. 13. AIR INTAKE: This is the main entry point for air cooling of the dimmer. DO NOT obstruct this entry and keep it free of dust. WMX SERIES DIMMER OPERATING MANUAL...
Getting Started 3.0 Getting Started The WMX would normally be wall mounted before any wiring is terminated. Refer to section 6.0 Installation for details. Connecting power The WMX dimmer is supplied with 4 rising clamp terminals for the connection of incoming mains power and a ring star connector for the incoming protective earth wire.
Setting the mains frequency The WMX can be configured to run from either 50Hz or 60Hz mains power - as supplied from the factory it is configured for 50Hz. To change the dimmer to 60Hz, change the three jumpers to “60Hz” as per Figure 3.4.
DMX termination In any DMX-512 system the signal should be terminated at the last dimmer or receiver in the chain, and the WMX can provide this function. To terminate the DMX signal, set the front panel slide switch from LOOP to the Terminate position.
For example, if DMX Channels 25 to 36 are desired, set the start channel to “25”. WMX Channel #1 is now DMX Channel #25. A WMX with this setting ignores DMX Channels 1 to 24 and 37 to 512, and only decodes Channels 25 to 36 as its dimmer information.
Once selected, the start channel is retained in memory if the power is switched off. 4.1.2 Test mode In this mode, the WMX’s internal controller is used to drive the selected dimmer channels. No DMX control is necessary, but a control signal may be left connected if desired.
When “Exit/C” is pressed, the dimmer returns to the menu displaying flashing CHS. If no button is pressed within 3 seconds the dimmer returns to normal operation, displaying the previously set DMX start channel. WMX SERIES DIMMER OPERATING MANUAL...
PHASE TEST Menu Exit PHASE TEST PHASE C TEST Menu Exit PHASE TEST ALL PHASE Menu TEST Exit DMX ADDRESS DMX ADDRESS (Fla shing Menu (Times out after 3 Figure 4.2: Front Panel Menu Structure WMX SERIES DIMMER OPERATING MANUAL...
The dimmer outputs are active while the Status LED is on continuously. If the Fault LED is on it may be cleared by pressing the “+” or “−” buttons, or by switching the dimmer off momentarily. WMX SERIES DIMMER OPERATING MANUAL...
The WMX dimmer features an “Output Hold” facility that “remembers” the last received DMX message. In the event of a cable being unplugged or severed, the WMX dimmer rack will continue to output the “Held” DMX levels until a new DMX message is provided.
Even though the WMX is a fan-cooled dimmer, it is very important that adequate ventilation is provided when in use, particularly around the top and bottom of the chassis.
Improve dimmer cooling DMX control errors Check DMX wiring, console Software failure Factory service No signal at DMX Loop output Terminate switch set to TERM Set Terminate switch to LOOP Figure 5.1: Fault finding guide WMX SERIES DIMMER OPERATING MANUAL...
Installation 6.0 Installation The WMX dimmer is designed for use in fixed installations - the dimmer is supplied with a wall-mounting bracket. This bracket enables the WMX to be mounted in one of the following arrangements: • The dimmer may be mounted in a 19 inch equipment rack (11RU of rack space required) •...
Installation Dimmer ventilation The WMX dimmers are cooled by a temperature controlled fan. The air intake is at the bottom, and exhausts through slots at the top and top-front. The WMX dimmers are intended for wall mounting in unenclosed spaces. Multiple dimmer arrays should be spaced at least 100mm apart vertically, and no more than three dimmers high, to avoid excessive heating of the top dimmer.
If the 32mm hole is not used for cable access it should be coved with the blanking plug provided. Attach the dimmer to the bracket as described in Section 6.6. Figure 6.2: Rack Mounting A Wall Mount Dimmer WMX SERIES DIMMER OPERATING MANUAL...
Mark and drill at least 4 fixing points, and attach the bracket to the wall. Attach the dimmer to the bracket as described in Section 6.6. Figure 6.3: Wall Mounting A Wall Mount Dimmer WMX SERIES DIMMER OPERATING MANUAL...
Feed any cables (supply, output, and control) through the cable access cutout. Attach the dimmer to the bracket as described in Section 6.6. Figure 6.4: Wall Mounting A Wall Mount Dimmer Over Cable Tray WMX SERIES DIMMER OPERATING MANUAL...
Place the assembly against the wall at the desired location, and mark and drill holes for at least 4 fixing points. Mount the enclosure on the wall. Attach the dimmer to the bracket as described in Section 6.6. Figure 6.5: Wall Mounting A Wall Mount Dimmer With Conduit Cable Entry WMX SERIES DIMMER OPERATING MANUAL...
5. Lock the dimmer in place with one M4 screw at the bottom right inside corner. 6. Re-attach the front panels. Figure 6.6: Attaching A Wall Mount Dimmer To The Bracket WMX SERIES DIMMER OPERATING MANUAL...
DO NOT use solvents for cleaning the front panels. INTERNAL CLEANING: The WMX dimmer will require little internal maintenance other than periodic flushing of dust build up to prevent the fan and air-path becoming clogged with dirt or fluff. • ISOLATE POWER to the dimmer (by disconnecting the power cable or locking off the mains supply isolator) •...
Size (mm) - Dimmer 485mm (w) x 490mm (h) x 145mm (d) - Shipping 630mm (w) x 580mm (h) x 190mm (d) Weight 16.6 kg net / 19.0kg gross Table 8.1: Technical Data And Specifications WMX SERIES DIMMER OPERATING MANUAL...
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