Honeywell UMC800 Fault Detection and Troubleclearing

Diagnostics and Troubleshooting

Fault Detection and Troubleclearing

Release F UMC800 Controller Installation and User Guide 81

4/01

Fault Detection and Troubleclearing

Interpreting the controller status and determining if any corrective action is necessary can be done by

referring to Table 20 and Table 21. Actions to clear fault conditions usually consist of restarting the

controller, and if the fault reoccurs, replacing the suspected faulty component. It is recommended that you

replace controller components only after performing all other actions listed for that fault condition.

NOTE: The controller status POWER LED is used to indicate a number of faults. A diagnostic fault

causes the POWER LED to flash. The LED will flash a number of times to indicate the type of fault

detected. (See the column “Controller LED on CPU” in Table 20.) The LED flashes quickly a number of

times followed by a long off period. This is similar to a telephone answering machine which uses a

flashing LED to indicate the number of messages. This indication is helpful when the operator interface or

PC is not connected or is not communicating with the controller.

ATTENTION

When replacement of a controller component is necessary, refer to procedures in

Maintenance section.

Table 20 Details of the diagnostic summary display

Controller

Diagnostic Summary

(In the User Utility and Operator

Interface)

Controller

LED on CPU Fault Detection / Troubleclearing

Menu

Item Status Possible Cause Controller Action User Action

−− POWER

LED flashes

1 time.

RAM failed on

power-up. Executes an infinite

loop that toggles

the LED.

Communications

and control are

disabled.

Cycle power;

If fault reappears,

replace CPU.

SYSTEM GOOD RUN LED on Controller is in

RUN mode. Executes the run

mode. None

SYSTEM OFFLINE MODE RUN LED

flashes. Controller is in

OFFLINE mode. Executes the

Offline mode. None

SYSTEM PROGRAM

MODE RUN LED

off. Controller is in

PROGRAM mode. Function blocks are

not executed. None

SYSTEM INVALID

CONFIG. RUN LED

off.

And

POWER

LED strobes

12 times.

A configuration

with more than 8

loops was

downloaded to an

8 loop controller.

Incomplete

download of

configuration files.

Empty database

created. Download

previous valid

configuration.

Contents

Main Notices and Trademarks Warranty/Remedy About This Document Abstract References Contacts Symbol Definitions Contents Page Tables Figures Introduction Purpose UMC800 Controller CE Conformity (Europe) UMC800 Overview UMC800 Description Feature Summary Equipment Identification Controller Components Release F UMC800 Controller Installation and User Guide 5 4/01 Equipment Identification Controller Components Figure 2 UMC800 controller hardware RS485 serial communication ports (slave and master) that support Modbus RTU protocol. Page Operator Interface ? ? Control Builder Page Serial Communication Ports Pre-Installation Considerations Introduction Page Page Page Mounting and Wiring Site Preparation CPU Module Power Supply Front Cover External Wiring Access Holes Mounting the Controller Page Plug-in Module Locations I/O Module Slots ! I/O Module PWA Terminal Block Figure 10 I/O module PWA and terminal Table 6 I/O module identification Page Page Page Signal Wiring Page Figure 13 AI module terminal block connections 26 UMC800 Controller Installation and User Guide Release F Power Supply Module Figure 14 Recommended wiring for one pH sensor input - Analog Input Module + Mod 1 Mod 4 Figure 15 AO module terminal block connections Page Figure 16 DI module terminal block connections Figure 17 DO module terminal block connections ! Figure 18 DO module relay contact setting 32 UMC800 Controller Installation and User Guide Release F Figure 19 PI/FI module terminal block connections Release F UMC800 Controller Installation and User Guide 33 4/01 OFF ON Figure 21 Pulse/frequency input connections - Pulse/Frequency Input Board V Supply (DC) R Page Page Wiring Communication Links Table 10 Summary of communication link connections to controller CONFIGURATION cable Table 12 Null modem cable construction Attach ties snugly against each side of the clamp. Cable Terminals * Wiring Communication Links Release F UMC800 Controller Installation and User Guide 41 4/01 Connector location at the rear of the operator interface 551 Operator Interface Rear Connector for Cable from Controller Figure 25 Terminal connections 552 Operator Interface Rear Connector for Cable from Controller 1041 Operator Interface Rear Page Page Remote Access Page Page Page Page Page Page Power Supply Wiring F 3,15 AT 250V L1 L2 / N Operation Power Up / Power Down Operational Modes and Controls Controller Mode Switch CPU Module Page File Downloading Code Download Warm Start / Cold Start Status Indicators NOTE: See Table 20 for the details of the indications and their meaning. Page RS 485 Port Configuration (Communication Board Option) Page Maintenance Overview Routine Maintenance Controller Calibration AO Module AI Module Backplane CPU Page Page Maintenance Controller Calibration ! Release F UMC800 Controller Installation and User Guide 69 4/01 ST1 Figure 34 AO module jumper ST1 Wire Jumper ST1 Replacement Procedures Backplane Figure 35 Controller components and location Battery Compartment Power Supply Fuse Power Supply Page 1 2 3 4 Figure 36 Power supply fuse and CPU battery location Fuse Holder 5 CPU Battery Location Page Page Page Page Page Page Diagnostics and Troubleshooting Overview Controller Diagnostics Page Fault Detection and Troubleclearing Table 20 Details of the diagnostic summary display 2. Upgrade 4. Contact 2. Upgrade 4. Contact Page 2. If fault 1. If Lo BAT LED 2. If Lo BAT LED 2. Replace Page 2. Replace AI 1. Replace 2. Check 1. Install the 2. Check 1. If the error is an 2. If the error is an 3. If the board is an Modem troubleshooting Controller modem problems will typically show one of two symptoms. Table 22 Controller modem troubleshooting Page Parts List UMC800 Controller Page Specifications Introduction Controller Design I/O Module Configuration Page Page *Base Power Required is the power required to provided module operation within specifications. Design Page Environmental and Operating Conditions *Relative Humidity is derated above 40 C. PV Inputs Page Page Index A B C D O P, Q R S T ! VEILIGHEIDSVEREISTEN DU2I-6048 ! TURVALLISUUSMRYKSET FI2I-6048 ! CONSIGNES DE SECURITE FR2I-6048 ! SICHERHEITSHINWEISE GE2I-6048 ! NORME DI SICUREZZA IT2I-6048 ! SIKKERHETSKRAV NO2I-6048 ! INSTRUES DE SEGURANA PO2I-6048 ! NORMAS DE SEGURIDAD SP2I-6048 ! SKERHETSFRESKRIFTER SW2I-6048 ! Page HSM8 HONEYWELL SERVICE CENTERS ARGENTINA BULGARIA GERMANY ASIA PACIFIC CANADA HUNGARY AUSTRALIA CZECH REPUBLIC ICELAND AUSTRIA DENMARK ITALY BELGIUM FINLAND MEXICO NORWAY REPUBLIC OF SOUTH AFRICA SWEDEN POLAND ROMANIA SWITZERLAND PORTUGAL RUSSIA TURKEY REPUBLIC OF IRELAND SLOVAKIA UNITED KINGDOM REP. OF SINGAPORE SPAIN U.S.A.