ELGO Electronic MTM-A-000 Series, Руководство по эксплуатации

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Installation and First Start-Up
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GND
TEACH
Signal cable
red wire
4
1 2
5
3
GND
TEACH
Standard Connection option R5M0
8.4 Calibration of the Measuring Range
8.4.1 Calibration for Versions with CAN Interface
A hardware calibration as described in section  8.4.2 is not required for this version.
The calibration of the upper and lower set point is performed via the CANopen interface.
8.4.2 Calibration for Versions with Analog Output
REMARKS

The calibration must be performed for each newly installed MTM-A-000
measuring system before or during commissioning.

Even when replacing the measuring system or rod (e. g. in case of servicing)
a new calibration must be performed.
One second after power-up, the device is ready for operation. In
addition, the MTM-A-000 system with analog output offers the
possibility of initiating the learning process during the first ten
seconds after power-up. A lower and upper set point must be de-
fined for which the TEACH input is required.
Ideally, this input is - temporarily for the calibration procedure -
wired with a switch or push-button against GND (see figure).
To calibrate the set points, please proceed as follows:
Starting position = TEACH input is open resp. not activated.

Press the connected TEACH button.
During the first second of pressing, the LED changes rapidly between red and green.
a) Keep the button pressed within 1 … 3 seconds, until the LED lights statically green:
 By releasing the button in the green phase, the learning of the lowest position (min) is initiated.
b) Keep the button pressed (max. 8 seconds), until the LED lights statically red:
 By releasing the button in the red phase, the learning of the uppermost position (max) is initiated.
Outside these times, the learning process is interrupted.
8.4.2.1 Teach Set Point 1 (Min)
Move the round rod to the lower set point (e.g. zero point) and release the TEACH button during the green
phase.
3 x flashing, followed by 3 x pressing button

stores the lower set point.
This is confirmed by the LED with a single green hold for 1.5 seconds.
Set point 1 (Min position)
Figure 8: TEACH input wiring