BRUEL & KJAER VIBROCONTROL 8000 - 1.2.1 Rack Connection Module (RCM); 1.2.1.1 Redundant Power Supplies

© Brüel & Kjaer Vibro ● S1079330.002 / V04 ● █ Page 19 of 188
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Brüel & Kjaer Vibro │ Instruction
VC-8000 MPS
VC-8000 Machinery Protection
System
EN
1.2.1 Rack Connection Module (RCM)
The Rack Connection Module (RCM) installs
in slot 1 and provides rack power
connections and other rack level interfaces.
• Primary power input
• Secondary power input
• Discrete contact control inputs
• Rack Fault Relay
• Reset button
• LED indictors
• Buffered transducer outputs
1.2.1.1 Redundant Power Supplies
The VC-8000 rack requires +24 Vdc external
power to operate. Redundant power inputs
are provided.
Plant +24 Vdc power can also be used.
IMPORTANT
+24Vdc COM is not isolated from the
Signal COM (in the UMM).
When using plant power (+24 Vdc), a
24V to 24V isolator is necessary.
Refer to the datasheets for information on
external power supply hardware, input
voltage tolerance, and current requirements.
Figure 1-3) RCM
Buffered Out
connector to external
device
+24 Vdc power input
connectors (2 pos)
Status LEDs
Latched Status Reset
Pushbutton
Discrete control contacts
(to dry relay contacts or
+5V TTL logic)
Fault Relay Contacts.
NC closes on fault
(or power loss)