Pelco es3012 Troubleshooting, Symptom System does not operate, Symptom No control RS-422

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TROUBLESHOOTING

Symptom: System does not operate.

1.Check system input voltage.

2.Check for proper positioning of input power select switch for the transformer (ES3012-5 models only).

3.The Esprit system is protected by a resettable overcurrent protective device located in the transformer module. Whenever a fault condition is experienced in the system caus- ing excessive current flow through the protective device, a change occurs that will pre- vent current flow. The protective device will remain in this state as long as power is ap- plied and the system fault remains. The protective device will reset itself after power has been removed for a few minutes and will operate normally when the system fault has been repaired.

4.Check the camera and lens power connections and video BNC connections.

Symptom: No control/sluggish control (Coaxitron)

1.Check for correct type and length of coax cable.

2.Check for correct coax termination (refer to the controller manual to determine proper termination of video input). Normal load termination is 75 ohms. When looping through VCRs or multiplexers, make sure the signal is terminated at the end device. Some ter- mination symptoms and problems are listed below.

Symptom

Problem

Extremely bright video

No termination or high resistance

Over contrast or contrast

 

level of monitor needs to

 

be increased to maximum

 

for a good video image

Double termination (37.5 ohms)

3.If pan and tilt operation is sluggish, check the controller manual to make sure the con- trol signal is set in the extended mode, not standard mode.

Symptom: No control (RS-422)

1.Check for correct cable type and length. The maximum cable distance for RS-422 communication over 24-gauge wire is 4,000 feet (1,219 m). Pelco recommends using shielded twisted pairs, such as Belden 9843 or similar cable, that meets or exceeds the basic requirements for EIA RS-422 or RS-485 applications.

2.Check for correct wire connections between transmitting device (such as the CM6700 Series matrix system) and Esprit system receiver. Correct connections are from the transmitting device TX+ to Esprit system RX+ and from the transmitting device TX- to Esprit system RX-.

3.Check for correct DIP switch settings.

4.Check that the video is terminated.

Symptom: Ground loops

Ground loops are indicated by seeing 60 Hz noise on the video.

1.Check for resistance between the grounds of the keyboard and the system. Ideally, there should be zero ohms.

2.Remove the coax BNC connector and check for voltage between the BNC shield of the controller and the BNC shield of the system. No voltage should be detected.

It is recommended that a Pelco GIT100 ground isolation transformer be installed to elimi- nate the above problems.

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Pelco Manual C306M-K (4/05)

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Contents ES3012 Series Esprit Pelco Manual C306M-K 4/05 Contents Esprit ES3012 System Dimensions Drawing List of IllustrationsList of Tables Important Safety Instructions Description ModelsBasic Installation Camera and Lens InstallationPIN Holder PAN and Tilt Installation RX+ Pelco Manual C306M-K 4/05 TXB Series Translator Board Installation Optional HOW to Remove the PAN and Tilt CoverHOW to Reinstall the PAN and Tilt Cover Operation POWER-UP DisplayHOW to Operate Your Esprit Integrated Positioning System Operating Notes Environmental RangeLens Functions Preset FunctionsPAN, SCAN, and Tilt Speeds RANDOM, FRAME, and Auto ScanningPresets ProgrammingEsprit Menus Accessing Main Menu Preset AZ/EL AZ/EL Line Azimuth Zero Direction Direction Line Display Duration Limit Stops Turning Limit Stops on or OFF Programming Limit StopsScan Limit Stops PAN/SCAN Speed Park TimePattern Length POWER-UP Mode Speed Profile Zone Blank Other MenuSymptom No control/sluggish control Coaxitron TroubleshootingSymptom System does not operate Symptom No control RS-422Maintenance Symptom No video or poor videoSwitch Setting SW1-4 SW1-5 AppendixBaud Rate Table B. Switch Settings for SW2 112 232 Specifications ElectricalALL Others are Inches Regulatory Notices Product Warranty and Return Information ISO9001