Vishay VT400 - Troubleshooting Specific Issues; 9.2 Checking Load Cell Connection; 9.3 Checking Power Supply

Appendix A: Technical Drawings
VT400 Technical Manual, Rev. A5 64 Doc # UM-VT400-EN
ii. Rear Panel Connections (Desktop Model)
1 2 3 4 5 6 7
+ - I
1
C
I
O
1
O
2
+C
o
COM 1
Pin Description
2 RX or DTR
3 TX
5 GND
D-Type Metal Case
(Shield)
POWER & SETPOINTS
Pin Description
1
2
Power
9-15 VDC
3 Input 1
4
Input
Common (-)
5 Output 1
6 Output 2
7
Output
Common (+)
COM 2
Pin Description
6 A
7 B
8
9
Termination
resistor
(120R)
D-Type Metal Case
(Shield)
LOAD CELL1
Pin Description
1 Excitation (-)
2 Sense (-)
3 Sense (+)
4 Excitation (+)
5 Signal (-)
6 Signal (+)
D-Type Metal Case
(Shield)
7
8
Calibration
Enable
COM 2
COM 1
Analog Output
Load Cell 1
DB9 fem
DB9 male
DB15
fem/male
DB15 fem
A
NALOG OUTPUT
Pin Description
1,9 IOut (+)
2,10 VOut (+)
3,11
IOut (-) or
VOut (-)
4,12
Power in
+24 VDC
5,13 Power in GND
D-Type Metal Case
(Shield)
NOTE: Short pins
8,9 for termination
resistor (120R)
connection