AMETEK 957 SSI Brik - Manual (Page 17)

17 1080 N. Crooks Road • Clawson, MI 48017 • 800.635.0289 • Phone 248.435.0700 • Fax 248.435.8120 • www.ametekapt.com
FACTORY AUTOMATION
®
If your LDT is not operating properly, the LDT’s cable may
have an open or short, or the power supply is not supply-
ing sufficient power. To verify this, perform the following
steps:
1. Turn the power supply off.
2. Remove the mating connector from the LDT.
3. Turn the power supply on.
4. Using a digital voltmeter, check from the Power Sup-
ply Common to the Power Supply + on the mating
end of the cable for a level between +7 and +30
VDC.
If reading is between 7 and 30 VDC, turn power supply off
and go to step 7. If reading is below 7 VDC, either your
power supply is not providing enough power or the LDT’s
cable possibly has a short/open. Readings of no voltage
or minimal voltage (less than 5 volts) may be due to short/
open in the cable. If reading is NOT between 7 and 30
VDC, go to step 5. If reading is above 30 VDC, adjust pow-
er supply or replace.
5. Turn the power supply off.
6. Check the continuity of the individual wires of the
cable between the power supply and the LDT. Check
for continuity from one end of the cable to the other.
Also verify that no shorts exist between pins.
7. Reconnect the mating connector to the LDT.
8. Turn power supply on.
9. Using a digital voltmeter, check the power supply’s
“+” and “-” terminals for a voltage between 7 and 30
VDC.
Low voltage readings may indicate a power supply with a
wattage (current) rating that is too low. (Each LDT requires
approximately 1.3 watts). If the cabling checks out in step
6 and your voltage is below 7 VDC, check your power sup-
ply current rating. If voltage is between 7 to 30 VDC and
the LDT is still inoperative, contact factory.
* See Section 3.4: Specifications for more information on
power consumption.
3.4 Specifications
Cable Specifications
Specifications
Connector Interface 6 Pin 12mm
Integral cable ass'y, 7 Pin or 8 Pin
DIN Shock 1000 Gs
IEC 60068-2-27 Output Type 24, 25 or 26 Bit, Binary or Gray
Code (optional parity and error
bit), Position Updates
Displacement 1” to 180" Vibration 30 Gs
IEC 60068-2-6 Resolution English or Metric Units
Metric: 1, 5, 10, 20 micron (5
micron standard)
English: .00005", .0001", .0005",
.001"
Consult Factory for Others.
Dead Band 2.65" (67.31 mm) standard Update Time Measuring Length 300 750 1000 2000 5000mm
Measurements/sec. 4.0 2.4 2.0 1.1 0.5k
Hysteresis 0.008”
Null Zone 2.00" (50.8 mm) standard Approvals CE (EMC) Non-linearity < 0.01% or +/- 0.005”, whichever
is greater, (+/- 0.003" Typical)
Enclosure Rating IP67, IEC 600529 Input Voltage 7 to 30 VDC Diagnostics Tri-Color LED beside connector/
cable exit, See 'LED Output Sum-
mary Table' on page 13
Measured Variables Single Magnet Displacement, Consult
Factory for Velocity or Differential
Operation Current
Draw 1.3 watts, (53mA at 24 VDC) typical* Operating
Temperature
-40° to 185° F ( -40° to 85° C)
Interface Specifica-
tions Input SSI Clock RS-422, 470 Ohm termination
resistance Storage
Temperature -40° to 221° F
(-40° to 105° C)
Output Data Pulse
Resistance RS-422, 2.0V min. @ 100 Ohm
termination Repeatability Equal to Output Resolution
SSI Clock Frequency Minimum 70 kHz Maximum 150 kHz
NOTE: Specifications subject to change and are based on a typical 48” stroke. *1.3 watt typical at 1ms interrogation time. Faster interrogation times increase power consumption.
Cable Type Gauge Jacket Temp Bend Radius
Connector Options "S", "M", "B", "C" 24 PVC -50° to 105° C Moving Applications - 2.36"
Fixed applications - 1.18"
High Temp Integral Cable "H" option 22 Teflon -70° to 200° C Moving Applications - 4.6"
Fixed applications - 2.3"
Connector Option "E" 22 Polyurethane -50° to 105° C Moving Applications - 2.3"
Fixed applications - 1.2"