AMCI DC60 Посібник користувача - Сторінка 17
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Друкувати сторінку2.1 Wiring Guidelines
The DC60 requires a power supply of 10 to 30 Vdc, (12 to 24 Vdc nominally). Power requirement is 1.0 watts
maximum, with 30 mA @ 24Vdc typical. This power draw does not include the current through the analog
output.
Signals from the DC60 are low voltage, low power signals. Cables should not be run with high power
AC or DC cabling.
Signal cable can be run in conduits with other low power AC and DC signal cables. Ideally, cable will
be run in metal conduit that is bonded along its entire length.
Signal cable should not be run in parallel with high power AC or DC cabling to minimize capacitive
coupling of electrical noise. If they must be run in parallel, separate them as much as possible.
If a signal cable must cross high power AC or DC cabling, it should do so at a right angle to minimize
inductive coupling of electrical noise.
2.2 Connector Location and Pinout
2.2.1 Connector Pinout
Figure 2.1 below shows the location of the power and I/O connector location as well as the connector pinout.
Rear View
Pin 1: +DC Power Input:
imum of 3.0 watts. This power draw does not include the current through the analog output.
Pins 2 and 8: DC Return:
inputs and the analog output signal.
Pin 3: Preset to Zero Input:
resistor. A high-to-low transition on this pin will preset the analog output to its minimum value. (In the case
of a 4 to 20 mA output, the output becomes 4 mA. In the case of a 0 to 10 Vdc Output, the output becomes 0
Vdc.) Therefore, this pin must be pulsed to ground (Pins 2 or 8) to preset the position. This input is heavily
filtered to prevent an accidental preset during normal operation, so the minimum pulse duration is 2,000 mil-
liseconds.
All DC60 encoders use a nonvolatile memory technology known as F-RAM. Unlike older
memory technologies such as EEPROM, F-RAM does not have a limit on the number of times
the memory can be written to. You can preset the position as often as necessary in your appli-
cation.
20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: (860) 585-1254 Fax: (860) 584-1973 http://www.amci.com
REQUIRED TASK
W
P
IRE
OWER AND
Power and I/O Connector
Status LED
Exit Direction of
Right Angle Cables
Figure 2.1 DC60 Connector Placement
Input pin to power the DuraCoder. Requires a 10 to 30Vdc power supply at a max-
The return for the DC power supply and ground reference for both the digital
This pin is internally tied high to the +DC Input Power, (Pin 1) through a pull up
I/O
Pin Description
Pin Description
1
+DC Power Input
5
2
DC Return (GND)
6
3
Preset to Zero Input
7
No Function.
4
Attach to DC Return.
8
Analog Output
Factory Programming.
Attach to DC Ground.
Direction Control Input
DC Return (GND)
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