Lenel m3000, Руководство по установке, Страница: 102 / 118

Troubleshooting and Maintenance
102
M3000 Installation Guide
b.
Disconnect connector J6 from the Power/Communications board. Use an ohmmeter to check
the resistance between pins 3 and 4. If the resistance is less than 200 ohms, there is a short
from power to ground. Isolate the fault by doing the following:
–
Remove all boards from the backplane except the Power/Communications and CPU
boards. Add each board while measuring the resistance on J6 pins 3 and 4. When the
resistance falls below 200 ohms while a board is plugged in, isolate the board. Continue
checking the remaining boards for other ground faults.
–
Remove connectors one by one on the faulty boards until the fault condition disappears
(resistance goes above 200 ohms). Trace out wiring on these connectors to find and
correct the problem.
Reader Problems
Consult your reader installation manual for potential problems which are not related to the M3000
controller. Also refer to the following sections of this manual:
•
Using the 2RP Board on page 102 .
•
Using the 2SRP Board on page 102 .
•
Using the 8RP Board on page 103 .
Using the 2RP Board
Problem: The reader does not power up.
Resolution :
1.
Be sure that JP1 on the 2RP board is set in the proper voltage selection location. Refer to Setting
Reader Voltage on page 39 .
• WARNING! •
Do not set W1 to 12 V for a 5 V reader. Permanent damage may result to the
reader.
2.
Be sure that the proper resistor packs are installed in the 2RP board. Refer to Installing Resistor
Packs on page 40 .
3.
Check the wiring between the 2RP board and the reader. Refer to 2RP Board on page 37 and the
reader installation manual.
4.
Be sure the connector is firmly seated in the 2RP board.
Problem: The reader has power, but the Badge Read OK LED on the CPU board does not light up
when a badge is presented.
Resolution :
1.
Be sure the resistor packs are installed and are the correct value for the reader type being used.
2.
Be sure that the switch settings on the 2RP board for address and reader technology/format are
correct. Refer to
Setting DIP Switches on page 39 .
3.
Check the wiring between the reader and the 2RP board. Refer to 2RP Board on page 37 and the
reader installation manual.
Using the 2SRP Board
Problem: The reader does not power up.
Resolution :
1.
Be sure that JP1 on the 2SRP board is set in the proper voltage selection location. Refer to
Setting Reader Voltage on page 52 .