Changes for page 0-10V Dimming Troubleshooting

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9	9	= Overview =
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43	43	= Verifying Fixture Wiring and Compatibility =
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	43	+== Troubleshooting 0-10V Wiring ==
	44	+
45	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.
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47	47	1. Identify the module and output that should be controlling the fixtures
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51	51	1*. Alternatively, some modules have physical buttons that can be used to toggle the output:
52	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	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)
54		-1. Reconnect the 0-10V wiring to the fixtures
55		-1*. Verify that the positive and negative dimming wires are not crossed
	54	+1. While the fixtures are turned off, verify that the voltage on the 0-10V wiring to the fixtures is close to 0 V
	55	+1. While the fixtures are turned off, check the 0-10V wiring to the fixtures for shorts
	56	+1. While the fixtures are turned on, verify that the voltage on the 0-10V wiring to the fixtures is close to +10 V DC
	57	+1. While the fixtures are turned on, short the positive and negative dimming wires to the fixtures
	58	+1*. Most drivers will dim to 50% brightness, though some fixtures will turn off
	59	+1. Reconnect the 0-10V wiring to the fixtures to the module output
	60	+1. Verify the module output voltage while the fixtures are connected
	61	+1*. The module output should be similar to the module output while the fixtures are disconnected
56	56
57	57	Below is a table of how to interpret troubleshooting results:
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59		-|(% style="width:209px" %)**Result**|(% style="width:321px" %)**Interpretation**|(% style="width:453px" %)**Next Steps**
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61		-Verify that the 0-10V wiring in the field is not shorted. Try shorting the 0-10V wiring to the fixtures and observe the result. The fixtures should dim to about 50% brightness.
	65	+|(% style="width:273px" %)**Result**|(% style="width:317px" %)**Interpretation**|(% style="width:393px" %)**Next Steps**
	66	+|(% style="width:273px" %)0-10V wiring to the fixtures reads -10V DC while fixtures are turned on and disconnected from the control module.|(% style="width:317px" %)Positive and negative 0-10V wiring is reversed in the field at all drivers.|(% style="width:393px" %)Reconnect the 0-10V wiring to the module output with reversed polarity (i.e. land violet wire to the field on the negative 0-10V output and land gray wire to the field on the positive 0-10V output) and check dimming again.
	67	+|(% style="width:273px" %)Intentionally shorting the 0-10V wiring to the fixtures while they are turned on does not affect their brightness|(% style="width:317px" %)0-10V wiring to the field is likely already shorted.|(% style="width:393px" %)Find where the short is in the 0-10V wiring.
	68	+|(% style="width:273px" %)(((
	69	+When the 0-10V dimming wires are connected to the module, the module dims different fixtures than it toggles.
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63		-Verify that the 0-10V wiring is correct at the fixture drivers (e.g. that the positive and negative wires did not get mixed up).
	71	+Or;
64	64
65		-Verify that the fixture drivers are actually 0-10V drivers; if the drivers are DALI or some proprietary dimming protocol, then they are not compatible with 0-10V lighting controllers. Either the drivers will need to be replaced or the lighting control system will need to be replaced.
	73	+Intentionally shorting the 0-10V wiring to the fixtures while they are turned on dims different fixtures.
	74	+)))|(% style="width:317px" %)(((
	75	+0-10V wiring zones are mixed up in the field (e.g. multiple zones have their 0-10V wiring tied together, or the 0-10V wiring for two zones got swapped)
	76	+)))|(% style="width:393px" %)(((
	77	+Determine whether the 0-10V wiring for the fixtures was simply landed at the incorrect output or if the wiring is incorrect in the field and then correct the wiring.
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	82	+== Determine Fixture Compatibility ==
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	84	+(% class="wikigeneratedid" %)
	85	+If the fixtures are misbehaving but the wiring has been verified correct, then there may be compatibility issues between the fixture, the driver, and the lighting controller.
	86	+
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	88	+Crestron maintains a [[list of compatible drivers>>https://www.crestron.com/Support/Tools/Lighting/Lighting-Fixture-Compatibility-List]] on their website. Determine the fixture and driver that have been installed and verify they are compatible with the 0-10V lighting controller being used.
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	91	+Verify that the LED drivers are actually 0-10V drivers and not phase dimming, non-dimming, DALI, or some other dimming drivers. If the drivers are not 0-10V control drivers, then it will not be possible to dim the fixtures using a 0-10V module unless the drivers are changed out for 0-10V drivers.
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	94	+There are two types of 0-10V LED driver: constant current and constant voltage. Constant current drivers dim the LED fixtures by varying the voltage output to reduce power while keeping current constant. Constant voltage drivers dim the LED fixtures by rapidly pulsing a constant voltage output. If the incorrect type of driver is used to power the fixtures (e.g. a constant current driver used for fixtures which require constant voltage), then the fixtures will not dim correctly. Verify that the drivers used are compatible with the fixtures.
	95	+
81	81	= Specific Crestron Modules =
82	82
83	83	The below sub-sections cover specific dimming procedures for various 0-10V controllers produced by Crestron.
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189	189	//Figure 4: GLXP-DIMFLV8 Overview [[(larger)>>https://wiki.chiefintegrations.com/download/SHOWRUNNER%E2%84%A2%20Setup%20Guide/Troubleshooting%20Guide/Wiring%20and%20Hardware/0-10V%20Dimming%20Troubleshooting/WebHome/glxp.png?rev=1.1]]//
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