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Last modified by Alexander Mott on 2024/01/05 18:55
From version 14.1
edited by Alexander Mott
on 2022/03/31 14:15
Change comment: There is no comment for this version
To version 16.1
edited by Alexander Mott
on 2022/03/31 14:21
Change comment: There is no comment for this version

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10 10  
11 11  0-10V dimming is one of the most common dimming methods for LED fixtures. It utilizes a 0-10VDC signal from the lighting controller to the fixture power supply or driver in order to control the brightness of the fixtures. This 0-10VDC signal is typically carried over a shielded pair of gray (negative) and violet (positive) wires. In the event that 0-10V dimming fixtures are exhibiting unexpected dimming behavior, an easy place to begin troubleshooting is at the lighting control module.
12 12  
13 -== Verifying Module Output ==
13 += Verifying Module Output =
14 14  
15 15  Crestron produces a variety of 0-10V lighting controllers, and the specifics for troubleshooting them varies slightly. That being said, there is a general procedure for testing 0-10V dimming modules that is applicable to any type of 0-10V controller (even non-Crestron controllers). This general procedure is as follows:
16 16  
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18 18  1. Disconnect the 0-10V wiring to the fixtures
19 19  1. Connect a multimeter to the 0-10V dimming output of the module
20 20  1. Measure the 0-10V output at various brightness levels
21 -1*. If the system has been partially or fully commissioned, it may be possible to use the showrunner UI to adjust the brightness
21 +1*. If the system has been partially or fully commissioned, it may be possible to use the showrunner™ UI to adjust the brightness
22 22  1*. Alternatively, some modules have physical buttons that can be used to adjust their brightness:
23 23  1**. Press the button to toggle the output on or off. A small LED light on the module will indicate current output on/off status.
24 24  1**. Once the output is on, press and hold the button to cycle dim the output (first press and hold will lower the output, subsequent press and holds will toggle between raising and lowering the output)
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40 40  * If the module produces the correct output when disconnected from the processor, then the issue may lie with the programming or with the control wiring (Cresnet / Zūm wiring).
41 41  )))
42 42  
43 -== Verifying Fixture Wiring and Compatibility ==
43 += Verifying Fixture Wiring and Compatibility =
44 44  
45 -There are a number of wiring and hardware issues that may result in
45 +There are a number of wiring and hardware issues that may result in fixtures not behaving as expected. Described below are some techniques that can help determine issues with wiring or hardware, however due to the wide variety of available fixtures and drivers it is not comprehensive.
46 46  
47 +1. Identify the module and output that should be controlling the fixtures
48 +1. Disconnect the 0-10V wiring to the fixtures
49 +1. Toggle the module output on and off to verify it is switching the correct zone
50 +1*. If the system has been partially or fully commissioned, it may be possible to use the showrunner™ UI to toggle the module output
51 +1*. Alternatively, some modules have physical buttons that can be used to toggle the output:
52 +1**. Press the button to toggle the output on or off. A small LED light on the module will indicate current output on/off status.
53 +1**. Once the output is on, press and hold the button to cycle dim the output (first press and hold will lower the output, subsequent press and holds will toggle between raising and lowering the output)
47 47  1. Reconnect the 0-10V wiring to the fixtures
48 48  1*. Verify that the positive and negative dimming wires are not crossed
49 49  
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71 71  
72 72  )))
73 73  
74 -== Specific Crestron Modules ==
81 += Specific Crestron Modules =
75 75  
76 76  The below sub-sections cover specific dimming procedures for various 0-10V controllers produced by Crestron.
77 77  
78 -=== ZUMNET-JBOX-16A-LV and ZUMLINK-JBOX-16A-LV ===
85 +== ZUMNET-JBOX-16A-LV and ZUMLINK-JBOX-16A-LV ==
79 79  
80 80  Zūm Wired JBOXs mount to a 1/2" knockout of a standard junction box.
81 81  
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85 85  
86 86  See //[[Figure 1>>WebHome||anchor="HFigure1"]]// for details.
87 87  
88 -=== CLX-2DIMFLV8 and CLX-2DIMFLV8-277 ===
95 +== CLX-2DIMFLV8 and CLX-2DIMFLV8-277 ==
89 89  
90 90  0-10V CLX modules are installed inside CAEN panels, which are typically located inside an electrical room or an MDF/IDF closet.
91 91  
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95 95  
96 96  See //[[Figure 2>>WebHome||anchor="HFigure2"]]// for details.
97 97  
98 -=== GL-EXP-DIMFLV-CN ===
105 +== GL-EXP-DIMFLV-CN ==
99 99  
100 100  GL-EXP-DIMFLV-CN are single-channel expansion modules used to provide additional 0-10V control to a system. They are self-contained and are surface mounted directly to a wall or ceiling.
101 101  
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105 105  
106 106  The ON/OFF button sits proud of the module cover, so care must be taken when replacing the cover to avoid damaging the button.
107 107  
108 -=== GLPP-DIMFLVCN-PM, GLPP-1DIMFLV2CN-PM, and GLPP-1DIMFLV3CN-PM (Discontinued) ===
115 +== GLPP-DIMFLVCN-PM, GLPP-1DIMFLV2CN-PM, and GLPP-1DIMFLV3CN-PM (Discontinued) ==
109 109  
110 110  GLPPs mount to two 4" junction boxes. The left junction box has low-voltage wiring for Cresnet and sensors, while the right junction box has high-voltage wiring to the fixtures.
111 111  
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115 115  
116 116  One common source of dimming issues with multi-channel GLPPs is mixing up the switched outputs and the dimming outputs; fixtures should have their 0-10V dimming connected to the dimming output associated with the switched output that controls them.
117 117  
118 -=== GLPAC-DIMFLV4 and GLPAC-DIMFLV8 (Discontinued) ===
125 +== GLPAC-DIMFLV4 and GLPAC-DIMFLV8 (Discontinued) ==
119 119  
120 120  GLPAC modules are self contained and typically installed above the ceiling in the room they control.
121 121  
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127 127  
128 128  See //[[Figure 3>>WebHome||anchor="HFigure3"]]// for details.
129 129  
130 -=== GLXP-DIMFLV8 (Discontinued) ===
137 +== GLXP-DIMFLV8 (Discontinued) ==
131 131  
132 132  0-10V GLXP modules are installed inside GLEP panels, which are typically located inside an electrical room or an MDF/IDF closet.
133 133  
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139 139  
140 140  See //[[Figure 4>>WebHome||anchor="HFigure4"]]// for details.
141 141  
142 -== Real World 0-10V Data ==
149 += Real World 0-10V Data =
143 143  
144 144  Below is a table of actual 0-10V readings at various percentage brightness for some Crestron lighting controllers:
145 145