MICRO-EPSILON
X9751109-B060097MSC
21
Measurement Setup and Putting into Operation
6.2
Operation of the scanCONTROL28x0 without a PC
6.2.1
Displays
Once the preparations for operation are complete, switch on the external direct voltage
supply (24 VDC). The "power on" LED lights when the operating voltage is applied.
Turn the keyswitch to "laser on". The "laser on" LED lights and the laser is operating.
The "error" LED indicates various error states by flashing. If a number of errors occur
simultaneously, two of them are indicated alternately. Therefore, after rectifying an error,
the LED may continue to flash for some time. If no flashing occurs over a few seconds,
then no error is present.
The "control" LED indicates communication with the PC and therefore does not light.
See also Chap. 3.4.4.
6.2.2
Analog Outputs
On both analog outputs you can now obtain the corresponding width (x) and height
measurements (z) and, for example, display them as an x/y graph on an oscilloscope.
Without intervention, the sensor supplies 400 profiles / s for 1 ms illumination time in
the standard measurement range (initial setting).
The analog values are only valid when the z values lie in the valid measurement range
(see table). Here, a profile may contain both valid and also invalid values. The latter
occur at places where no measurement is possible, e.g. with partial shading, holes in
the target, etc. In this case the error value for z is output.
The ranges 0 to 3 correspond to various spreads and offsets of the transmission curve
for the analog values in mm.
Tab. 6.2: Valid analog value ranges and error values.
Connecting the analog output
i
IMPORTANT!
Before putting the
equipment into operation
follow the information on
the laser class in Chap. 2.
Operate sensors on
controllers with the same
serial number only.
For accurate
measurement, the sensor
and controller need a
warm-up period of
typically 20 min.
Assignment:
Analog signal 1: z
Analog signal 2: x
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z
,
x
(
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)
z
(
0
V
0
1
+
.
.
.
0
1
-
V
0
1
-
1
V
5
+
.
.
.
5
-
V
5
-
2
V
0
.
.
.
0
1
-
V
0
1
-
3
V
0
1
+
.
.
.
0
V
0
Z axis
X axis
Standard: Range 0
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x
-
0
0
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2
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1
)
2
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(
D
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)
z
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1
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3
)
1
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x
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Fig. 6.2: View: Solder-pin side,
male cable connector
Tab. 6.3: Pin assignment PC2800-x
1
2
3
4
MICRO-EPSILON recommends the use of the optional availbale C2800-x analog output
cable with a length of 3 m.
Go to www.odu.de to get the assembly instructions of the MiniSnap/Series L male
connector. Recommended cable: UNITRONIC LIYCY 2 x 0.25
