GE Reason H49
Technical Manual
H49/EN M/C22
47
6.4
Alarm Relay Wiring
The 3-pin connector of the relay alarm on the SRPV3 board allows the following H49
statuses:
S1351ENa
Figure 26: Relay Alarm Wiring
Pin
Signal
Description
1
Normally Open
Closed=Normal Operation
Open= Power supply defect (both input voltage sources are
down) / Operating System defect (Kernel crash, processor
overload, memory leak)
2
Common
3
Normally Closed
Closed= Power supply defect (both input voltage sources are
down) / Operating System defect (Kernel crash, processor
overload, memory leak)
Open= Normal Operation
6.4.1
Using Terminal Blocks
Printed-circuit board connectors can be used:
Figure 27: Pluggable Terminal Block
The relay alarm connector shall be plugged with MSTB 2,5 HC/ 3-ST-5,08 - 1911978
manufactured by Phoenix Contact.
6.4.1.1
Recommended Wire Size
The minimum
recommended wire size
for terminal blocks is 2.5mm
2
.
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