Gas Detection (Australia) Pty Ltd Page 15 of 44
M-GDA-3000 Rev 1
5.3.1. RELAY DRIVE TYPE WIRING METHOD
The Relay drive type of GDA-3000 can be operated by two ways.
There is De-Energized Mode and Energized Mode.
Main PCB is marked A, B silk to set Relay drive type and connect using Jumper as you want
Relay drive type.
[Figure 7. Main PCB Relay part Configuration]
Drive type
A Contact
B Contact
De-Energized
Connect Jumper to (A-C)
Connect Jumper to (B-C)
Energized
Connect Jumper to (B-C)
Connect Jumper to (A-C)
[Table 7. Relay drive type description]
Note 1) Be sure to use the same J1, J2, J3.
Note 2) Conventional GDA-3000 can be operated DE-Energized Mode.
