GE Valve Software Tools MN-Valvue-FF-IOM Service Manual Page 191
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Exiting Failsafe
Failsafe Handling
Failsafe Examples One and Three
Table 12 and Table 13 list two failsafe examples. Table 14 and Table 15 on page 179
cover two more fail-safe examples. Detailed instructions for exiting failsafe follow these
tables.
Exiting Failsafe
Use this procedure to exit the failsafe mode for cases one and three:
Step One
1. Restore the air supply or correct the actuator problem.
2. Check that the pneumatics are working correctly.
3. Move the Failsafe dialog box to one side of the screen to uncover the IVI display.
4. If the PID dialog box is open, close it.
Step Two
Table 12 Failsafe Case One
Case One Failsafe Type Actuator
Action
Cause of Failure
Observable Behavior: Valve fails
closed with low actuator pressure.
After pressure problem is corrected the
valve is closed in failsafe.
Deviation
Error
Air to Open
Fail Close
Loss of supply or low actuator
pressure
XD Error: Deviation error appears in
the error status. The Failsafe Status
dialog box displays and shows Active,
Latched.
Table 13 Failsafe Case Three
Case Three Failsafe Type Actuator
Action
Cause of Failure
Observable Behavior: Valve fails to
open with high actuator pressure. After
pressure problem is corrected the
valve is closed in failsafe.
Deviation
Error
Air to Open
Fail Close
High actuator pressure
XD Error: Deviation error appears in
the error status. The Failsafe Status
dialog box displays and shows Active,
Latched.
- Masoneilan 1
- Products 1
- ValVue* FF (Rev B) 1
- Warranty 2
- Contents 3
- Safety Information 17
- Product Safety 18
- ValVueFF Specifications 21
- Getting Started With ValVueFF 23
- Wiring Requirements 26
- NI-FBUS Software 27
- ValVueFF Administration 33
- Installing ValVueFF 34
- Trial Period 42
- Registration 43
- ❑ Adding new user accounts 47
- Using ValVueFF 51
- Menu Bar 52
- Menu Bar 53
- Icon Toolbar 55
- Positioner Faceplate 57
- Active Faceplate 59
- Status Frame 61
- Selected Device Frame 61
- ❑ NORMAL 62
- ❑ MANUAL 62
- ❑ Out of Service 62
- Device Selection 63
- Setup Menu 65
- Configuration Services 71
- Device Tag/Address 73
- View Menu 74
- PID Controller 75
- Device Operation State 77
- Tools Menu 78
- Query Device 79
- Rescan Devices 80
- Help Menu 81
- Offline Use of ValVueFF 82
- Setup Wizard Procedure 83
- Step 1: Welcome 84
- Step 2: Actuator Wizard 85
- Step 3: Tuning Wizard 86
- Step 6: Finish Setup Wizard 93
- General Page 96
- Block Tag Info 97
- Others Installed 97
- Position Tab 98
- Position Limits Frame 100
- Limit Switch Threshold 101
- Fault Control 101
- Actuator Page 103
- Diagnostic Parameters 104
- Model and Serial Number 104
- AO Block Tab 105
- AO Block Options 106
- PID Block 108
- PID Control and Status Option 110
- Characterization Frame 112
- GE Energy 114
- ❑ Right-click the point 115
- - the distance from the 118
- Pressure Frame 119
- Others Frame 119
- Calibration Services 121
- Find Range Result 122
- Auto Stop Limits 122
- Manual Stop Limits 123
- Open Stop Adjustment 124
- Tuning Tab 125
- Auto Tune 127
- Travel Calibration Tab 128
- Calibrating 129
- Advanced Tab 131
- Overview 135
- PID Status Frame 136
- Simulation Function 137
- Others - Tuning Parameters 138
- PID Output and Valve Position 139
- Trending Overview 139
- Customizing the Trend 140
- Saving a Configuration 143
- Save to File 144
- Downloading to the FVP 145
- Download Firmware 147
- ❑ Right-click on Offline 148
- Diagnostic Services 151
- Self Check 152
- Performing a Self Test 152
- Self Test Explanation 153
- Signature Tab 154
- Signature Selection Frame 155
- Signature Measurement 156
- Signature Graphs 158
- ❑ Current 160
- ❑ Record 160
- ❑ Baseline 160
- ❑ Select File > Save 161
- Signature Notes 163
- Figure 126 Signature Notes 164
- 4. Enter notes and click OK 164
- Signature Setting Frame 165
- Extended Actuator Signature 167
- Step Response Test 169
- CAUTION The FVP must be OOS 170
- Step Response Test 173
- Positioner Signature 178
- Positioner Signature 179
- Query and Reporting Services 181
- Reporting Services 184
- Using Report Generation 185
- Communication Error Log 186
- Failsafe Handling 189
- Failsafe Clear Latched 190
- Failsafe Clear Non-Latch 190
- Exiting Failsafe 190
- Glossary 199
- Launching from Yokagawa and 209
- Figure 165 PRM Main Screen 210
- Launching from Yokagawa PRM 213
- Emerson Delta V Snap-On 214
- Configuring DI to TB 217
- Installing the PCMCIA Card 220
- Install the USB-8486 220
- Error Messages 223
- Online Diagnostics 224
- Block Error 225
- Foundation Fieldbus 227
- Reference Model Process 228
- P& I D 228
- Function Block Links 229
- ❑ Select the icon 231
- Block Modes 232
- Multiple Modes and States 233
- Transferring to Manual State 235
- Figure 181 Manual State 236
- Figure 182 Normal State 236
- RCas Mode 237
- Changing to Auto from OOS 238
- Information 240
- National Instruments 241
- GEA19795B 02/2012 244
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