Troubleshooting - JFW 50MS-192 Operating Manual

13 - TROUBLESHOOTING

Initialization Time
After the 50MS-192 has been turned on, it will take at least 8 seconds for the unit to completely
initialize itself. If you send remote commands while it is still initializing, the command will not be
executed.
External Troubleshooting
If the 50MS-192 is installed in a system and does not seem to be functioning properly, JFW
recommends first removing the 50MS-192 and testing it by itself. This will verify that it is indeed
the 50MS-192 that is not working and not another part of the system. It is also recommended that
all testing at this stage be done with the JFW test program to help determine software
inconsistencies.
Ethernet Problems
It is very important that the remote command format follow the specified format as detailed earlier
in the "Command Set" section of this manual.
Verify the following settings: IP address, Gateway, Netmask, and Port Number. Remember that
the Port Number is hard-coded to 3001 and can not be changed.
If you changed from RS-232 control to Ethernet control with the manual switch on the back panel,
you must turn the unit off and then back on for the change to take affect.
RS-232 Problems
It is very important that the remote command format follow the specified format as detailed earlier
in the "Command Set" section of this manual.
Verify the following RS-232 settings : baud rate (selected on rear panel), parity (none), data length
(8), and stop bit (1).
If you changed from Ethernet control to RS-232 control with the manual switch on the back panel,
you must turn the unit off and then back on for the change to take affect.
AC Voltage Fuse
There is a AC voltage fuse located on the back panel. This fuse is rated at 250 Volts/2 Amps.
If the fuse is blown, it can be replaced per the Littlefuse #215-002 or JFW part #025-021.
Unknown Error
If communication between the host computer and the 50MS-192 has been established and the
software has been verified as working properly, then the problem lies internal to the unit either with
the control board or one or more RF components. Please consult the factory at this point
for possible further troubleshooting instructions. Use the email address sales@jfwindustries.com.
Rev 0, 7-27-06
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