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5. Installation
5. Installation
GTD-3000TxW
Instruction Manual
5.4.1. Terminal Configuration
5.4. Relay and Network Terminal Configuration
TER. NO.
PIN NO.
Terminal Name
Description
CN7
1
TRB OUT
Trouble RELAY OUTPUT Terminal. Output mode is decided by J2 Jumper setting.
2
TRB COM
TROUBLE RELAY COMMON Terminal
3
AL1 OUT
ALARM1 RELAY OUTPUT Terminal. Output mode is decided by J3 Jumper setting.
4
AL1 COM
ALARM1 RELAY COMMON Terminal
5
AL2 OUT
ALARM2 RELAY OUTPUT Terminal. Output mode is decided by J4 Jumper setting.
6
AL2 COM
ALARM2 RELAY COMMON Terminal
CN6
7
RS485 A
RS485 A Terminal
8
RS485 B
RS485 B Terminal
[Figure 10. Relay and RS485 Terminal]
[Table 4. Relay & RS485 Terminal Description]
5.4.3. RS485 MODBUS Setting
■ MODBUS of GTC-3000TxW is optional and is connects to the receiver as shown below.
TER. NO.
PIN NO.
Terminal Name
Receiver Terminal Name
Notes
CN9
7
485A
'TRXD+' or 'A' or 'P'
8
485B
'TRXD- or 'B' or 'N'
[Table 6. RS485 Terminal Description]
[Table 5. Relay Mode Setting]
■ Relay of GTD-3000 operates in 2 types of method; Normal open and Normal close. The Jumper is
constructed to configure relay operation method at the Main PCB and operating setting is as follows.
TER. NO.
PIN NO.
Terminal Name
MODE Setting
CN10
1
TRB OUT
J2 A-C Connection: A Contact ( Normal Open )
J2 B-C Connection: B Contact ( Normal Close )
2
TRB COM
3
AL1 OUT
J3 A-C Connection: A Contact ( Normal Open )
J3 B-C Connection: B Contact ( Normal Close )
4
AL1 COM
5
AL2 OUT
J4 A-C Connection: A Contact ( Normal Open )
J4 B-C Connection: B Contact ( Normal Close )
6
AL2 COM
5.4.2. Relay Mode Configuration
[Figure 11. Relay Mode Setting]
[Figure 9. 4-20mA 3Wire Sink Configuration]
■ Connect (+) and (-) terminals for 4-20 mA sink
output at PLC side to VISO terminal and power
(24V DC) (-) terminal, respectively. Connect
'mA'terminal of GTD-3000Tx to 'GND' terminal.
Then, turn off the J1 jumper.
5.3.3. Wiring for 4~20mA 3Wire Sink Operation Type
