Emerson ROC827 - Manual (Page 117)

ROC827 Instruction Manual
Issued Mar-06 Troubleshooting 6-5
Caution
Ensure all input devices, output devices, and processes remain in a safe
state upon restoring power. An unsafe state could result in property
damage.
When working on units located in a hazardous area (where explosive
gases may be present), make sure the area is in a non-hazardous state
before performing procedures. Performing these procedures in a
hazardous area could result in personal injury or property damage.
Note
: The procedure assumes you are using ROCLINK 800 software.
1. Reconnect power to the ROC827 unit.
2. Wait 30 seconds.
3. Launch ROCLINK 800 software, log in, and connect to the ROC827.
4. Verify that the configuration is correct. If major portions or the entire
configuration needs to be reloaded, perform the remaining steps.
5. Select File > Download.
6. Select the backup configuration file (with file extension *.800) from
the Open dialog box.
7. Select the portions of the configuration you desire to download
(restore).
8. Click Download to restore the configuration.
9. Configure other required parameters.
6.3.3 Troubleshooting Analog Input Modules
Before you can determine whether an Analog Input module is operating
properly, you must first know its configuration. Table 6-1 shows typical
configuration values for an Analog Input:
Table 6-1. Analog Input Module Typical Configuration Values
Parameter Value Value Read
Adjusted A/D 0 % 819 1 volt dc across the + and the COM terminal by a multimeter
Adjusted A/D 100 % 4095 5 Volts dc across the + and the COM terminal by a multimeter
Low Reading EU 0.0000 EU value with 1 Volt dc
High Reading EU 100.0 EU value with 5 Volts dc
Value xxxxx Value read by AI module
Equipment Required:
ƒ Multimeter
ƒ PC running ROCLINK 800 software