4. INTERCONNECTION VM-5G
-5-
4-2 WIRING OF EXTERNAL CONTACT INPUT
• Beware of electric shock from high-voltage parts.
• Sequence function
Short between the SEQ and COM terminals to activate the sequence function.
• Reset function
Short between the RES and COM terminals to release any alarm under hold.
• Power sequence function sequence
Short between the P-S (power sequence) and COM terminals to cut off the
secondary (internal) power supply.
• Filter sequence function.
Short between the FLT and COM terminals to activate the seismic filter function.
• It is necessary to keep short circuit of the terminals for more than one (1) second to
operate these functions.
• Power sequence function should be applied only for short time (less than one (1)
minute) and emergency use such as the case of pulling out and inserting the monitor
unit.
If this function is used for long time over one (1) minute, monitor damage will result.
Warning
Caution
A8
NC
External reset
Contact input
VM-5G Single Unit Instrument Rack
Input / output terminal block
SEQ
COM
P
-S
RES
COM
Power sequence
Contact input
Sequence circuit
Contact input
A9
DAN
A10
NO
A11
NC
A12
ALE
A13
NO
A14
NC
A15
OK
A16
NO
A17
L1
A18
L2
A19
FG
B8
NC
B9
DAN
B10
NO
B11
NC
B12
ALE
B13
NO
B14
SEQ
B15
COM
B16
P-S
B17
RES
B18
COM
B19
FLT
Filter sequence
Contact input
FLT