44
VeriFast
TM
LVDT – User Manual – FDP-VFA-LVD-UM-EL-1.15-0918
Appendix A – Signal Conditioner Specifications
Complete Signal Conditioner Electrical Connections
Color
Terminal
Name
Function
White
1
SYNC I/O
Synchronization (Daisy chain for multiple units)
2
ERROR DOUT*
Error Flag Output
3
Primary Coil 1
Primary Excitation to LVDT
4
Primary Coil 2
Primary Excitation to LVDT
Red
5
SHIELD**
Optional cable Shield connection
6
NULL DOUT*
Remote Calibration Null Output
7
Secondary Coil 1
Secondary signal from LVDT
8
Secondary Coil 2
Secondary signal from LVDT
Blue
9
UP DOUT*
Remote Calibration UP Output
10
DOWN DOUT*
Remote Calibration DOWN Output
11
GND*
,
**
VOUT Return
12
VDC OUT
Output Voltage
Black
13
ZERO DIN*
Remote Calibration ZERO Input
14
FULL DIN*
Remote Calibration FULL Input
15
-VIN (GND)**
Supply Voltage Return (0 V DC)
16
+VIN
Supply Voltage In (+24 V DC)
* Used for remote calibration only.
** Terminals 5, 11 and 15 are internally connected.
Signal Conditioner Specifications
Parameter
Value
Power:
Input Voltage / Current
9 – 30 VDC, 90 mA max @ 24 VDC
Signal Output:
Voltage Output
0-10 VDC
Frequency Response
100 Hz Max
Output Voltage Ripple
1 mV
RMS
max
Output Non-Linearity
< ± 0.05% of FSO
Digital I/O:
Input
Current Sink, High True (I = 3.0 mA Max., V = 30 VDC Max.)
Output
Open Collector, Low True (I = 50 mA Max., V = 30 VDC Max.)
Environmental:
Temperature Coefficient
< 0.02% FRO/°C
Operating Temperature Range
-20°C to 75°C
Enclosure
4.5 x 3.9 x 0.9 in.
Features:
Calibration
Via Front Panel Push Button or discrete digital I/O.
Calibrated for use with 22 mm weld pin stroke. If 50 mm weld pin stroke is being used,
see section
Re-Calibrating the Signal Conditioner
starting on page 24.
Synchronization Capability
Master/Slave Synchronization via single wire bus
Null Position Detection
Via Front Panel LEDs or discrete digital I/O
Error Detection
Primary or Secondary Wire Break Detect, indicated by blinking LEDs and Digital I/O