Meggitt VM600 - Channel Inhibit Function

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9 - 38 VM600 MPS hardware manual (standard version) MAMPS-HW/E

Edition 17 - February 2018

Channel inhibit function

CONFIGURATION OF MPC4 / IOC4T CARDS

9.8 Channel inhibit function

The channel inhibit function can only be activated using software, that is, there is no

equivalent DSI input.

The channel inhibit function is activated when one of the VM600 MPS software packages

(MPS1 or MPS2) is used to send channel inhibit commands to individual MPC4 channels

(Communications > To MPC > Channel Inhibits).

Alternatively, Modbus can be used to control the channel inhibit function for a networked

VM600 machinery protection system (containing a CPUM card).

For further information on the channel inhibit function, see 4.6.6 Channel inhibit function.

Main Page

Revision Record Sheet2
Preface7
Safety13
- Table of Contents17
1 Introduction27
- Applications27
- General Overview27
- Communicating with the VM600 MPS31
2 Overview of Vm600 Mps Hardware35
- Racks35
- MPC4 Machinery Protection Card (Abe04X and ABE056)41
- IOC4T Input/Output Card (Abe04X and ABE056)43
- AMC8 Analog Monitoring Card (Abe04X and ABE056)44
- IOC8T Input/Output Card (Abe04X and ABE056)44
- CPUM Modular CPU Card (Abe04X Only)46
- IOCN Input/Output Card (Abe04X Only)46
- RLC16 Relay Card (Abe04X and ABE056)49
- IRC4 Intelligent Relay Card (Abe04X and ABE056)50
- RPS6U Rack Power Supply (Abe04X Only)51
3 General System Description81
- System Elements81
- Rack with MPC4 / IOC4T Card Pairs81
- Rack with AMC8 / IOC8T Card Pairs84
- VM600 6U 19" Rack Backplane (Abe04X)86
- VM600 1U 19" Rack Backplane (ABE056)96
Part I: Functional Description of VM600 MPS System97
4 Mpc4 / Ioc4T Card Pair99
- Different Versions of the MPC4 Card99
- General Block Diagram102
- Overview of MPC4 Operation104
- Inputs and Outputs105
- Rectification Techniques112
- Alarm Monitoring113
- System Self-Checks121
- MPC4 Power-Up Sequence123
  - Power-Up after Live Insertion123
- Operation of Leds on MPC4 Panel124
5 Amc8 / Ioc8T Card Pair129
- General Block Diagram129
- Overview of AMC8 / IOC8T Operation131
- Inputs and Outputs133
  - Measurement Signal Inputs133
  - DC Outputs133
- Multi-Channel Processing Functions134
- Time-Domain Processing Functions134
- Linearity Compensation134
- Alarm Monitoring135
- System Self-Checks139
  - OK System Checking139
  - Built-In Self Test (BIST)140
- AMC8 Power-Up Sequence141
  - Power-Up after Live Insertion141
- Operation of Leds on AMC8 Panel142
  - Global DIAG/STATUS Indicator LED for the Card142
  - Individual Status Indicator Leds for Measurement Channels143
6 Cpum / Iocn Card Pair145
- Different Versions of the CPUM Card145
- General Overview145
- VM600 MPS Rack (CPUM) Security146
- Block Diagrams147
- Serial Port Naming148
- Operation of Leds on CPUM Panel151
  - Diag Led151
7 Processing Modes and Applications153
- Different Versions of the MPC4 Card153
- Broad-Band Absolute Bearing Vibration155
- Tracking (Narrow-Band Vibration Analysis)157
- Shaft Relative Vibration with Gap Monitoring158
- Shaft Absolute Vibration159
- Position Measurement162
- S Max Measurement162
- Eccentricity Measurements165
- Shaft Relative Expansion166
- Absolute Housing Expansion175
- Differential Housing Expansion176
- Broad-Band Pressure Monitoring177
- Quasi-Static Pressure Monitoring178
- Differential Quasi-Static Pressure Monitoring179
- Quasi-Static Temperature Monitoring179
- Differential Quasi-Static Temperature Monitoring180
- Dual Mathematical Function181
- Narrow-Band Fixed Frequency183
Part II: Installing VM600 MPS Hardware and Using the System185
8 Installation187
- Introduction187
- Attribution of Slots in the Rack189
- Rack Safety Requirements190
- Installation Procedure for Cards197
9 Configuration of Mpc4 / Ioc4T Cards205
- Definition of Screw Terminals on the IOC4T Card205
- Connecting Vibration and Pressure Sensors209
- Connecting Speed Sensors224
- Configuring the Four Local Relays on the IOC4T234
  - Relay Terminology235
  - Operation of Relays235
- Configuring the Four DC Outputs239
- Buffered (Raw) Outputs241
- DSI Control Inputs (DB, TM, AR)241
- Channel Inhibit Function242
- Slot Number Coding for IOC4T Cards243
  - VM600 System Rack (Abe04X)243
  - VM600 Slimline Rack (ABE056)244
- Grounding Options244
- Using the Raw Bus to Share Measurement Channel Inputs245
- Assigning Alarm Signals to Relays on the RLC16 Card248
  - Using the Open Collector Bus (OC Bus) to Switch Relays249
  - Using the Raw Bus to Switch Relays252
- Assigning Alarm Signals to Relays on the IRC4 Card259
10 Configuration of Amc8 / Ioc8T Cards261
- Definition of Screw Terminals on the IOC8T Card261
- Connecting Sensors to the IOC8T265
- Configuring the Four Local Relays on the IOC8T273
  - Relay Terminology273
  - Operation of Relays273
- Configuring the Eight DC Outputs273
- DSI Control Inputs (DB, AR)274
- Channel Inhibit Function274
- Slot Number Coding for IOC8T Cards274
  - VM600 System Rack (Abe04X)274
  - VM600 Slimline Rack (ABE056)275
- Assigning Alarm Signals to Relays on the RLC16 Card276
  - Using the Open Collector Bus (OC Bus) to Switch Relays277
  - Using the Raw Bus to Switch Relays280
- Assigning Alarm Signals to Relays on the IRC4 Card287
11 Using the Rlc16 Card289
- Definition of Screw Terminals on the RLC16 Card289
- Connecting the RLC16 Relays292
  - Relay Terminology292
  - Operation of Relays292
- Configuring the RLC16 Card293
- Slot Number Coding for RLC16 Cards293
12 Using the Irc4 Card295
- General Block Diagram295
- Definition of the Screw Terminals on the IRC4 Card295
- Connecting Relays to the IRC4 Card298
  - Relay Terminology298
  - Operation of Relays298
- Configuring the IRC4 Card298
- Slot Number Coding for IRC4 Cards299
  - VM600 System Rack (Abe04X)299
13 Configuration of Cpum / Iocn Cards301
- Configuring Ethernet Communications301
- Configuring RS Serial Communications302
- Configuring a and B Serial Communications304
  - Selection, Half-Duplex (2-Wire) Configuration304
  - Selection, Full-Duplex (4-Wire) Configuration304
- Configuring RS-485 Terminations for RS, a and B Serial Communications307
  - CPUM Card (Carrier Board)308
  - Optional Serial Communications Module (AIM104-COM4 or Equivalent)308
- Additional Jumpers on the IOCN Card309
  - Linking the RS and a Serial Communications Connectors309
- Connectors on the IOCN Card310
- Location of Components on the CPUM Card (Later PFM-541I Version)312
- Location of Components on the CPUM Card (Earlier MSM586EN Version)313
- Location of Components on the IOCN Card314
- Upgrading the Version of Firmware Running on a CPUM Card315
Part III: Maintenance and Technical Support317
14 Maintenance and Troubleshooting319
- Preparation319
- Storage319
- Modifications and Repairs320
- Cleaning320
- General Remarks on Fault-Finding320
- Detecting Problems Due to Front-End Components and Cabling321
  - Replacing a Suspect Front-End Component or Cable321
- Detecting Problems in the VM600 MPS Rack322
  - General Checks for Racks322
  - Replacing a Suspect Card323
- Checking the MPC4 for Processing Overload330
15 End-Of-Life Product Disposal331
16 Service and Support333
- Contacting Us333
- Technical Support333
- Sales and Repairs Support333
- Customer Feedback334
Energy Product Return Form336
A Environmental Specifications343
- Overall344
- Operating Temperatures for Individual VM600 System Components345
- Storage Temperatures for Individual VM600 System Components346
- Temperature Derating for the Power Entry Module of a VM600 Rack347
B Data Sheets349
C Definition of Backplane Connector Pins351
D Abbreviations and Symbols357

Meggitt VM600 - Channel Inhibit Function

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