Meggitt vibro-meter VM600 - Page 93

Document reference MAMPS-HW/E HARDWARE MANUAL
Edition 18 - March 2022 VM600 machinery protection system (MPS)
3-3
Rack with MPC4 / IOC4T card pairs
GENERAL SYSTEM DESCRIPTION
Analog
Measurement
Channel
Processing
Analog-to-Digital
Conversion
Digital Signal
Processing
Micro-Controller
Analog
Speed
Channel
Processing
Digital
Speed
Channel
Processing
E
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P
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E
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P
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RAW OUT
TACHO
OUT
Connector P2
DIAG/STAT.
RS-232
4 chan.
2 chan.
E
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P
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c
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1
2
3
4
1
2
Connector P4
E
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P
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c
t
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n
CH1
CH2
CH3
CH4
Measurement
Channels
E
M
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P
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c
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Tacho 1
Tacho 2
Speed
Channels
VM600 Rack
Backplane
Trip
Multiply
TM
Danger
Bypass
DB
Alarm
Reset
AR
RET
Local Relays
E
M
C
P
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c
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n
1
2
3
4
DC Outputs
MPC4 Card
Slot X (Front Cage)
IOC4T Card
Slot X (Rear Cage)
RET
E
M
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P
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n
1H & 1L
2H & 2L
3H & 3L
4H & 4L
Raw Outputs
(Raw signals)
E
M
C
P
r
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t
.
Industry Pack
Interface
Industry Pack
Interface
VME Bus
3
Open-collector
drivers
Raw Bus
Digital-to-
Analog
Conversion
2 chan.
Voltage-to-
Current
Conversion
Jumper
Selection
4-20 mA
0-10 V
4 chan.
CPUM Card
Slots 0+1 (Front Cage)
IRC4 Card
Slot Y (Rear Cage)
XX X.X
XXX
XXX
RS232
Ethernet
RS
A
RS232
or RS485
2 x RS485
or RS422
B
2 x RS485
or RS422
1
Ethernet 1
2
Ethernet 2
IOCN Card
Slot 0 (Rear Cage)
RL1
or RL8 (IRC4)
OC Bus
16
Raw Bus
Tacho Bus
RL1
RL2
RL3
RL4
E
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1
6
(Channel status)
To/ f ro m
MPC4
IP Bus
(Industry Pack)
To / f ro m
IOC4T
IP Bus
(Industry Pack)
RLC16 or
RL16 (RLC16)
32 diff.
6
64
Figure 3-1: Block diagram of MPC4 / IOC4T card pairs in a VM600 MPS
Note: The safety
version of the MPC4
card (MPC4SIL) does
not have a VME bus
interface.
Note: Tacho Bus
lines 1 to 6 are
available for
speed/tacho signal
sharing.