Johnson Systems J-PACK Series Dimmers User Manual

Page 25

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22. Ø-PATCH

Set the zero-cross phase reference for each dimmer control output circuit.

The defaults (DEFAULTS) menu is normally used to configure the phase patch for the

J-PACK Series dimmer pack. This menu provides custom phase patching for non-

standard applications.

If a dimmer control output is patched to the incorrect phase reference, the dimmer will

not dim correctly and will go to full output at around 1% DMX input.

Press EXECUTE to enter the menu and configure the dimmer phase patch.

CH 01 ØA

Displays the dimmer output channel (CH 01) and patched phase (ØA).

CH 06 ØC

Press MENU ( ) to change the dimmer output channel to patch from 01 to 06.

CH 06 ØA

Press EXECUTE to toggle the patch to Phase A (ØA).

CH 06 ØB

Press EXECUTE to toggle the patch to Phase B (ØB).

CH 06 ØC

Press EXECUTE to toggle the patch to Phase C (ØC).

Press ESCAPE to exit the menu and save the desired settings.

Press RESET to exit the menu without saving.

The menu will automatically timeout after 2 minutes of inactivity and save.

23. WARMING

Turn the “lamp warming” feature on or off.

The unique “lamp warming” feature is activated by a control level above 0% and

lowers the in-rush current to the dimmer (cold lamp filament) by up to 70%. This

results in significantly increased lamp filament life and lower long-term operating costs.

WARMING is set to ON by factory default, but may be turned OFF for some

installation applications. With WARMING set to ON, a maximum delay of 245

milliseconds is introduced to “warm” the lamp when it is turned on. For fast chase

effects the delay may be undesirable, in which case, the “lamp warming” feature can

be turned off. Note that when standby mode is enabled the microcontroller goes to

sleep within 5 seconds of inactivity on the control inputs, and there is delay of 150

milliseconds for the microcontroller to wake up and restart normal run mode. To

ensure virtually instant dimmer control response, set STANDBY to DISABLED and

WARMING to OFF.

Press EXECUTE to enter the menu and configure the lamp warming mode.

DISABLED

This menu is disabled to help prevent inadvertent changes. Proceed to enable.

ENABLED

Press and hold MENU (

) and MENU (

) at the same time for 4-5 seconds.

ON

Press EXECUTE to toggle the lamp warming mode from ON to OFF.

OFF

Press EXECUTE to toggle the lamp warming mode from OFF to ON.

Press ESCAPE or RESET to exit the menu.

Any change in the configuration is automatically saved.

24. V-RANGE

Set the supply voltage range for 120 Volts or 240 Volts operation.

J-PACK Series dimmer packs are capable of operating with most common AC supply

voltages. The default is for 120 Volts operation. This menu must be set for 240 Volts

operation when the supply voltage is between 210VAC and 250VAC.

120 VOLT

Press EXECUTE to toggle from 120 Volts to 240 Volts operation.

240 VOLT

Press EXECUTE to toggle from 240 Volts to 120 Volts operation.

Press ESCAPE or RESET to exit the menu.

Any change in the configuration is automatically saved.

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