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Specifications

• IndustryPack Slots – 4

• I/O Space – A16 space, 128 bytes per IndustryPack slot

• ID Space – A16 space, 128 bytes per IndustryPack slot

• Memory Space – A24 space: none or 128 KB to 2

MB per IndustryPack slot. A32 space: 8 MB per

IndustryPack slot fixed

• Interrupts – IndustryPack interrupts mapped 1:1 to

VME IRQ levels by shunt or PLD selections.

• Front Panel I/O Access – One pair of 50-pin right

angled keyed, shrouded ribbon cable connectors with

ejection hardware for each pair of IndustryPack slots

• Back Panel I/O Access – All 50 I/O pins from slot D

and a configurable selection of 14 pins from slot C

routed to VME bus P2 rows A and C

• Indicators – 1 green LED per slot to indicate

accesses. 1 green LED to show power to slots A and

B. 1 green LED to show power to slots C and D

• IndustryPack Site Features – 8 MHz only. IO cycles,

ID cycles, memory cycles, interrupt acknowledge

cycles. 32-bit interface and IndustryPack DMA are

not supported.

The source and type of each channel is selectable during card configuration.

Cold Junction Compensation (CJC) sensor processing is used for the thermocouple temperature

channel and can be used for two of the eight channels, also selectable during card configuration.

All inputs are conditioned and compared to user-configurable alarms that are defined through Meggitt’s VM600 MPSx software.

A pair of AMC8/IOC8T cards is configured (i.e. operated independently) via the RS-232 port on the front panel of the relevant AMC8 card.

The AMC8 card also provides access to the CPUx card (ABE04x only) in slot 0 of the VM600 rack via the VME bus.

These interfaces allow the operator to configure the VM600 card, access measurements,

view detailed board status, upload firmware updates, and more.

The AMC8 card can drive the four local relays on the IOC8T card, as well as any of the 16 relays

on the RLC16 card using the VM600 rack’s raw bus and/or open collector (OC) bus.

These cards also provide analog signal outputs based on current (0 to 25 mA). Voltage outputs are also supported.

Description

AMC8 Card

The AMC8 is an analog monitoring card designed for use in the VM600 rack-mounted system

in the Meggitt Vibrometer® product family for machinery monitoring and protection applications.

This versatile card is capable of measuring and monitoring up to eight analog signal inputs simultaneously.

The AMC8 card is available in two versions: a “standard” version and a “circuit independent” version,

both of which are available as card pairs using the corresponding IOC8T input/output card.

The AMC8 card is mounted on the front of the VM600 rack (ABE04x or ABE056) and the IOC8T I/O card is mounted on the rear.

Both cards connect directly to the rack backplane via two connectors.

A pair of AMC8/IOC8T cards provides eight channels of temperature monitoring that accept resistance

temperature detector (RTD) and thermocouple (TC) temperature inputs as well as process inputs.

Control signals

– Alarm Reset (AR): A closed contact between the DSI AR and DSI RET inputs resets (clears) the

MPC4/IOC4T card’s alarm to lockout.

NOTE: The alarm reset input (DSI AR) is edge sensitive and requires a high to low transition to activate the

reset.

– Danger Bypass (DB) : A closed contact between the DSI DB and DSI RET inputs inhibits (bypasses) the

Danger Relay output.

– Trip Multiplier (TM): The closed contact between the DSI TM and DSI RET inputs multiplies

the alarm level by a scaling factor (configurable via software) for adaptive monitoring.

Principle of operation: Detects open or closed circuits on the inputs Alarm outputs

Alarm relays: 4 per IOC4T card.

The MPC4 card can drive the four local relays on the IOC4T card, as well as the relays on 

the RLC16 relay card and/or the IRC4 Smart Relay card via the Raw bus or open collector (OC) bus in the

VM600 chassis.

See Relay Characteristics on page 4 for IOC4T card relay functions.

Parameters

Dynamic Signal Input

Filtering: Filtering to prevent electromagnetic interference (EC compliant).

Refer to the VM600 MPC4 Mechanical Protection Card datasheet for more information.

Buffered dynamic signal output

Filter: Filtered to prevent electromagnetic interference (EC compliant).

Refer to the VM600 MPC4 Machine Protection Card datasheet for more information.

Speed/phase reference input

Filter: Filtered to prevent electromagnetic interference (EC compliant).

Refer to the VM600 MPC4 Machine Protection Card datasheet for more information.

Discrete Signal Interface (DSI) inputs

The MPC4 card can drive the four local relays on the IOC4T card, as well as the relays on 

the RLC16 relay card and/or the IRC4 Smart Relay card via the Raw bus or open collector (OC) bus in the

VM600 chassis.

See Relay Characteristics on page 4 for IOC4T card relay functions.

For example, in a typical application, these relays can be used to signal an MPC4 fault or

a problem detected by the common alarms (Sensor Normal, Alarm, and Hazard).

In addition, 32 digital signals representing alarms are transmitted to the rack backplane and

can be used by the optional RLC16 Relay Card and/or IRC4 Intelligent Relay Card (with optional jumpers)

mounted in the rack.

Application Information

The IOC4T, when paired with the MPC4 Machinery Protection Card, is ideally suited for

machinery monitoring and protection in a variety of industrial applications.

For more information on using the MPC4/IOC4T card pair, see

VM600 Machinery Protection System (MPS) Hardware Manual and the VM600 MPSx Software Manual.

For information on using the MPC4/IOC4T card pair in a functional safety environment, refer to the

VM600 Functional Safety manual.

The IOC4T card protects all inputs and outputs from electromagnetic interference (EMI)

and signal surges and complies with electromagnetic compatibility (EMC) standards.

The IOC4T connects raw dynamic (vibration) and velocity signals from sensors to the MPC4.

These signals are processed and passed back to the IOC4T and made available on its front panel (rear of

the VM600) terminal strip.

For dynamic signals, four on-board digital-to-analog converters (DACs) provide calibrated signal outputs

in the 0 to 10 V range.

In addition, four on-board voltage-to-current converters provide current output signals in the 4 to 20 mA

range (jumper optional).

The IOC4T contains four local relays that can be used for any specific alarm signal under software control.