AMCI 7500 Series Manual de início rápido - Página 9
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This supplement to the standard 7500 manual is a guide to setting up a 7500 LDT interface module.
It assumes that you are familiar with SLC500 processors and ladder logic programming. If you are
not, please see the appropriate Allen-Bradley literature, or contact your local AB representative.
1. Determine what kind of Linear Displacement Transducer, LDT, you are using. The following
table contains a list of compatible LDTs.
2. Record the Gradient Value of the LDT. This calibration parameter is located on the transducer's
head, and is necessary to calculate accurate position data. AMCI transducers will have a gradient
value in meters/second. Temposonic transducers will have a gradient value in msec/inch or
msec/millimeter. Depending on when it was manufactured, Balluff transducers may have their
gradient values in either meters/second or msec/inch. However, setting the 7500 module for
Balluff requires that the gradient be entered in meters/second. The following formula can be
used to convert from ms/in to m/s. Gradient in m/s = [1/(gradient in ms/in * 0.00003937)] The
result should be between 2541m/s and 3175m/s.
3. Determine your application requirements. This will include the required position resolution -
programmable up to 0.001", the direction of travel - increasing position data as the magnet
moves away from or towards the head of the transducer, and the measurement unit - inches or
millimeters.
4. Wire the LDT and the external power supply into the MS-8 connector which plugs into the 7500
module. Please refer to page 3 of the manual for wiring information, and note that pin 1 is
located at the bottom of the connector when it is plugged into the module. AMCI, Balluff, and
Temposonic II transducers all require an external +15Vdc to operate. The Temposonic LP and
LH transducers require an external +15Vdc to +24Vdc to operate. The 7551 will operate
normally at the +24Vdc, but it is recommended that a +15Vdc supply be used. When wiring the
LP or LH transducers, pin three of 7551 module's MS-8 connector, the -15Vdc input, should be
left open.
5. Configure the slot where the 7500 module will reside using your PLC programming software.
The 7500 module has an ID code of 3515.
6. The 7500 module is programmed from the output image table of the PLC. The data can either
be manually entered, or a ladder logic program can be generated to program the module. A
sample ladder logic program, with the module located in slot 1, is shown at the end of the Quick
Start guide. If you are using this program, and your module is located in a different slot, modify
the program to use your slot number.
7. With the 7500 module installed, power up your SLC500 rack and download your rack
configuration and ladder logic program to the PLC.
8. After verifying that the wiring is correct, plug the MS-8 connector into the 7500 module, and
power up the external supply. The unit's green LED should be on solid, and the red LED either
off, or on flashing. The Red LED may be flashing because the transducer is improperly wired,
or the 7500 module has not yet been configured for the transducer type which you are using.
7500 Module Quick Start Guide
Manufacturer
LDT Part Number
AMCI
LHTA-X, LHTB-X, or LHTC-X
Balluff
BTL-2-K2-XXXX-X-XXXX-XX
Temposonic
TTS-XXXXXXXDE004
TTS-XXXXXXXR
LPXXSXXXXX
LHXXXXXXXXXXR0
LHXXXXXXXXXXDE-04
X = "don't care"