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AMCI 7551 にも： クイック・スタート・マニュアル (11 ページ)
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User Supplied Power
The cable diagrams in the 7551 manual show that the module was designed to be used with sensors that
operate from a +15Vdc supply. While this is still true, the 7551 module will also operate with sensors
that operate from a 24Vdc supply.
The 7551 module will draw a maximum of 60mA of current from the positive side of the external supply.
Add this amount to the amount of current that your sensor will require when sizing your external power
supply. The 7551 module does not draw any power from the negative side of your external power
supply.
Wiring Information
1. When the connector is plugged into the 7551 module, pin 1 is located at the BOTTOM of the
module.
2. Because a 7551 module can be used with sensors from several manufacturers that use different cable
types and wire colors, only the module's connector along with the appropriate signal names are
shown in this document.
3. The +15Vdc or +24Vdc external power supply shown in the above diagram must be externally
supplied by the user.
4. The 7551 module does not use any power from the –15V supply side. This terminal is simply a
convenient place to connect the sensor to the –15Vdc power supply.
5. Based on the sensor's manufacturer and output type, the +Stop signals shown above may be named
+Start/Stop or +Gate.
6. Use the information provided by the sensor's manufacture to determine the type and maximum
length of cable that should be used to connect the sensor to the 7551 module.
7. Transducer signals are generally low voltage, low power signals. If you are using A-B guidelines
for cabling installation, treat the transducer cable as a Category 2 cable. It can be installed in
conduit along with other low power cabling such as communication cables and low power ac/dc
I/O lines. It cannot be installed in conduit with ac power lines or high power ac/dc I/O lines.
8. Like all signal and communication cable, the transducer cable should be shielded. These shields
must be grounded at one end of the cable only. Because the rack cabinet is typically a better
ground than the machine, AMCI recommends that the cable shields be terminated at the 7551
module.
20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786
Tel: (860) 585-1254
Fax: (860)584-1973
7551 module, MS-8 Connector
+Stop
Or
-Stop
-Interrogate
+Interrogate
Cable Shields
-15Vdc
Or
Supply Common
+15Vdc
Or
Web:
www.AMCI.com
7551 Manual Addendum
+Start/Stop
Or
-Start Stop
No Connection
+24Vdc
+Gate
-Gate
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