LiftMaster LMSC1000 Installation Manual - English French Spanish - Page 7

Troubleshooting (continued) Problem No Wiegand data received by Access Controller System Printed RFID Tag IDs do not match what is received on the access controller. Reader is sending too many tag reads to the access controller. Programming Programming Troubleshooting Resolution Verify that the RFID Reader is acknowledging the tag by beeping and/or If you do not receive a beep and/or a blue LED flash then the reader is not LED flashing blue. acknowledging the RFID tag. If the reader LED flashes blue, verify the reader is outputting serial data from the reader to Wiegand interface module (WIM). When the reader flashes blue there should be a corresponding red LED flash on the Wiegand interface. If there is not a flash of the red LED when a tag is read then there is a problem with the serial data feed between the reader and WIM. Double check the wiring between the two devices to make sure all of the connections are correct. You may confirm data output by connecting a computer with serial connection and use a telnet program (such as putty). The settings for the connection should be 9600,8,N,1. You should see raw tag data if you connect to the reader using the following connection (Green - RXD, White - TXD, Yellow - Com). If there is no serial data coming from the reader then the reader has malfunctioned and needs repair. If there is serial data coming from the reader then the problem is in the WIM and it needs to be replaced. If the reader LED flashes blue and the WIM flashes red, check to make sure the top orange LED flashes (the initial flash should be instant however repeat flashes are controlled by the re-transmission control). The orange LED indicates when a Wiegand pulse is sent to the access controller. If no orange LED flash is observed then there is a problem with the WIM and it should be replaced. If the reader LED flashes blue, WIM flashes red and top orange LED flashes there may be a wiring issue between the WIM and your access controller. Make sure your wiring run is less than the maximum distance of 98.5 ft (107 m). With a DMM, measure for DC voltage between the Data 1 and COM as well as Data 0 and COM. You should read a normal operating voltage of at least 4.9-5V DC. A reading of less than this voltage indicates a voltage drop potentially due to cable distance or poor connections. Disconnect the Wiegand connector from the WIM module (Access Controller still connected) and measure the voltage at the connector. This will test the wiring run from your access controller to WIM and should be >4.9V DC. If you measure 0V DC then there is a break in your wiring run. Disconnect the Wiegand connection from the Access Controller (WIM still connected) and measure the voltage at the connector. This will test the wiring run from your WIM to Access Controller and should be >4.9V DC. If you measure 0V DC then there is a break in your wiring run. The Wiegand interface outputs 26-bit Wiegand data. Make sure that the Try swapping the Data 0 and Data 1 wires at either the Wiegand interface access controller you are using is set to receive 26-bit Wiegand inputs. or access controller and retest. The factory default is to send a Wiegand output for every tag read made Change the Wiegand re-transmission delay setting (0-15 seconds) using by the RFID reader. This is adjustable and a delay can be programmed the steps in the installation manual. to minimize the Wiegand outputs sent to the controller. Service Parts Part Mounting Bracket Wiegand Interface Module RF Power Supply - 3 amps Part Number K-AUMB RFID Bracket K-S2W Wiegand Interface Board KSC12-3A 7