Measurement input
The associated VM600 I/O interface presents the field-side measurement path to the MPC4 card.
Model Information
As a machinery-protection processing card, the Meggitt Vibro-Meter MPC4 200-510-074-114 operates in the VM600 rack. It processes the configured protection measurements presented by the associated VM600 input path and returns status through the rack controller path.
Within the VM600 rack, MPC4 200-510-074-114 uses the backplane for its controller connection while the associated I/O interface provides the field-side measurement path. The card and interface therefore form two connected stages of one protection signal route.
Processed measurement and protection status from MPC4 200-510-074-114 travel through the VM600 rack interface toward the controller and monitoring functions. The card’s role is measurement processing within that rack path.
Technical Specifications
| Technical item |
|
|---|---|
| Brand | Meggitt Vibro-Meter |
| Product type | Machinery-protection card |
| Product family | MPC4 |
| Part number | 200-510-074-114 |
| System | VM600 machinery protection |
| Rack interface | VM600 backplane |
| Processing role | Protection measurement processing |
| Field connection | Associated VM600 I/O interface |
| Data output | Controller and monitoring path |
| Signal type | Configured protection measurements |
| Card position | VM600 rack card |
| Dynamic inputs | 4 per MPC4 card |
| Tachometer inputs | 2 per standard or separate-circuits card |
| Dynamic input range | 0 to ±20 VDC; ±10 V AC maximum |
| Input impedance | 200 kΩ |
| Current input range | 0 to 25 mA DC; ±8 mA AC maximum |
| Communication | VME A24/D16 slave and RS-232 configuration port |
| Rack supply | +5 VDC and ±12 VDC from VM600 rack power supply |
| Sensor supply | +27.2 V, −27.2 V, +15.0 V and 6.16 mA outputs |
| Operating temperature | −25 to 65°C |
| Alarm scan interval | 100 ms maximum |
| Processing input | Field-side measurements from associated I/O |
| Processing output | Processed status to controller path |
| Field-side stage | Associated VM600 I/O interface |
| Controller stage | VM600 backplane and monitoring path |
Diagnostics and Protection: MPC4 Protection Processing
MPC4 200-510-074-114 processes the protection measurements entering the VM600 protection path.
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Protection processing
MPC4 200-510-074-114 processes the configured measurement values on the rack card.
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Status output
Processed measurement and protection status travel through the rack interface to the controller path.
Operating Characteristics: MPC4 Measurement Path
The operating path of MPC4 200-510-074-114 runs from the field-side interface through the rack card to monitoring functions.
Field-side stage
The associated I/O interface supplies the configured measurement connection.
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Card stage
The MPC4 card handles the protection measurement processing inside the rack. -
Rack stage
The VM600 backplane carries processed data and status toward the controller and monitoring path. -
Status flow
MPC4 200-510-074-114 returns the processed measurement and status through that rack-side path.
Frequently Asked Questions
What does MPC4 200-510-074-114 process in the VM600 rack?
MPC4 200-510-074-114 processes the configured machinery-protection measurements presented by the associated VM600 input path. It then sends processed measurement and status data through the rack interface toward the controller and monitoring path.
Why can an MPC4 200-510-074-114 card be present while a field channel is still inactive?
In the rack path for MPC4 200-510-074-114, the MPC4 is the processing card, while the associated VM600 I/O interface provides the field-side connection for the measurement path. The card, I/O interface and rack backplane must all be traced before the channel is considered complete.
How does MPC4 200-510-074-114 reach the controller?
The configured measurement enters through the VM600 input/interface path, is processed by MPC4 200-510-074-114 and is passed through the VM600 backplane to the controller. This makes the field connection and the card connection two distinct checks.
What should be checked when one protection channel from MPC4 200-510-074-114 is missing?
MPC4 200-510-074-114 does not choose the external protocol. Check the field-side I/O termination, the MPC4 rack position and the backplane data path separately. A missing channel is not diagnosed by reading the MPC4 code alone because the input interface is part of the measurement chain.
Why must the full MPC4 200-510-074-114 string remain in the rack record?
When documenting MPC4 200-510-074-114, the complete code identifies the supplied MPC4 variant used in the protection channel. Keeping the full string prevents the specific card from being confused with a shorter MPC4 family label.
Does MPC4 200-510-074-114 provide external network ports?
MPC4 200-510-074-114 is a VM600 machinery-protection processing card, not the rack communications interface. External network traffic follows the controller and communications-interface path after the measurement data has been processed.
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