www.gastron.com
12
_
13
5. Installation
5. Installation
GTD-1000Tx(M)
Instruction Manual
[Figure 4. Main PCB Terminal Layout]
5.2. Main PCB Configuration
■ After detaching the display parts, the Main PCB terminal layout appears as shown in the figure below.
■ Using OC1, OC2, and OC3 shown in the layout above, RS-485 option board can be attached and 3ØScrew
holes located at top left of RS-485 option board are used for fixing.
[Table 2. Main PCB Key Part Description]
No
NAME
DESCRIPTION
1
CN6
Power & Output Signal Terminal
3
CN7
RS-485 Terminal
3
J1
4~20mA Source / Sink Selection Jumper ( ON: Source Type, OFF: Sink Type)
4
CN4
Display LCD Connector
5
CN5
Sensor Connector
6
CN2
Program download Connector
7
D1
Status LED (Flashes in 1 sec interval during normal operation)
8
OC1,OC2,OC3
RS-485 Option Board Connector
9
CN3
Warning light (GTL-100) Interface Connector
5.3. Terminal Configuration
■ <Warning - Turn off power before connecting power terminal>
■ Loosen 5 terminal fixing screws located at top part of detached terminal block CN6 (VIS, +, mA, -, ETH) Connector by
turning counter-clockwise using a Θ driver. Connect DC 18~24 V power to +, and - then connect signal cable to mA.
Tighten 5 terminal fixing screws clockwise (cw) so that terminal does not leave the track then insert Main PCB as the
same condition before disassembly.
[Table 3. CN6 Terminal Detailed Description]
NO
PCB SILK
PIN NAME
DESCRIPTION
4~20mA Source Drive (J1 Jumper ON)
4~20mA Sink Drive (J1 Jumper OFF)
1
VISO
VIS
N.C
4~20mA Sink In(+)
2
+24V
+
+24V / POWER (+)
3
mA
mA
4~20mA Source Out
4~20mA Sink Out(-)
4
GND
-
GND / POWER (-)
5
ETH
ET
EARTH
■ Use CVVS or CVVSB 2.0sq↑ Shield Cable for terminal configuration.
[Table 4. CN7 Terminal Detailed Description]
NO
PCB SILK
DESCRIPTION
1
RS485A
RS485A Terminal
2
RS485B
RS485B Terminal
[Figure 5. CN6, CN7 Terminal Configuration]
Terminal Set Screw
