I need some help with my new autopilot installation. I just installed a Bendix King XCruze 100. It is connected to dual GRT WS EFIS displays which in turn are connected to a Garmin 430W.
I am getting a "NO GPS" message on the main screen of the XCruze. According to the troubleshooting section in the XCruze manual, this is caused by one of three things:
1. GPS not configured correctly
2. Baud rate set incorrectly
3. Wiring is faulty
1. I have the GPS configured as follows. The 430W is sending RS-232 aviation data on channel 3 (pin 41) to both EFIS units. The 430W configuration on channel 3 output is set to "Aviation." The EFISs are both receiving this data on serial port 5, which are configured as follows: Baud rate 9600; Input GPS 1 Aviation/MapCom; Output Autopilot (NMEA0183); Input counter is running.
2. Baud rate on both EFIS displays is set at 9600 for serial port 5.
3. I did a continuity check on the wiring. There is no resistance between pin 17 on the autopilot connector and pin 3 (serial 5 out) on the A connector on the GRT screens. There is also no resistance between pin 41 on the 430W and pin 22 on the GRT A connector (serial 5 in).
Since all of the wiring and configurations are confirmed to be correct, why am I still receiving "NO GPS" on the autopilot? Is it possible the WS in not compatible with the XCruze? Should I wire the 430W directly to pin 17 on the autopilot instead of routing it through the EFIS?
I am getting a "NO GPS" message on the main screen of the XCruze. According to the troubleshooting section in the XCruze manual, this is caused by one of three things:
1. GPS not configured correctly
2. Baud rate set incorrectly
3. Wiring is faulty
1. I have the GPS configured as follows. The 430W is sending RS-232 aviation data on channel 3 (pin 41) to both EFIS units. The 430W configuration on channel 3 output is set to "Aviation." The EFISs are both receiving this data on serial port 5, which are configured as follows: Baud rate 9600; Input GPS 1 Aviation/MapCom; Output Autopilot (NMEA0183); Input counter is running.
2. Baud rate on both EFIS displays is set at 9600 for serial port 5.
3. I did a continuity check on the wiring. There is no resistance between pin 17 on the autopilot connector and pin 3 (serial 5 out) on the A connector on the GRT screens. There is also no resistance between pin 41 on the 430W and pin 22 on the GRT A connector (serial 5 in).
Since all of the wiring and configurations are confirmed to be correct, why am I still receiving "NO GPS" on the autopilot? Is it possible the WS in not compatible with the XCruze? Should I wire the 430W directly to pin 17 on the autopilot instead of routing it through the EFIS?