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PRODUCT INSTALLATION MANUAL
If you suspect the MUX 2700 is not functioning properly, please refer to Table 4 below for a summary of
some possible problems.
Symptom
Lights flash sequentially
No LEDs lit
Yellow <HART TX> LED
continually flashes
Red <FAULT> LED is lit
M
AINTENANCE
5.
Pepperl+Fuchs apparatus do not require any particular maintenance under normal operating conditions.
They are designed to operate trouble-free and with high stability for long periods.
Any repair made by unauthorized personnel may completely invalidate the safety
characteristics of the unit and could void all warranties. Repair not made by
Pepperl+Fuchs is fully at user's risk and responsibility. In addition, the warranty terms of
the unit will be null and void to all effect.
G
LOSSARY
6.
DCS
Distributed Control System
FSK
Frequency Shift Keying
HART®
Highway Addressable Remote Transducer
HIS
HART Interface Solution
HHT
Hand Held Terminal
HPTB
HART Panel Termination Board
IS
Intrinsic Safety
PLC
Programmable Logic Controller
Table 4 – MUX 2700 Troubleshooting
Cause
TEST switch is ON
Power failed or fuse blown
Scanning is enabled
Self-test fault
WARNING!
DOCT-B3K6
P
AGE
Solution
Turn off the power
Set TEST switch off
Restart the system
Check 24 VDC supply
Check <PWR ON> LED
Verify fuse intact
Go to the configuration
properties of the MUX and
disable scanning mode
Contact Pepperl+Fuchs
Technical Support for further
instructions
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