Reset ? press button, Reset sucessfully – Baumer BA DABU MP4M Benutzerhandbuch
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Baumer Electric AG
19.12.07/rut
Frauenfeld, Switzerland
Example:
If a tensile load is stressed on tie bars or axles ‘Mode 1’ must be switch to ‘L’ (low).
With this setting the input and the output signal of the amplifier are positive.
Measured values DABI: 4 to 20mA
Measured values DABU: 0 to 10V
The Peak value of the tensile load will be displayed.
If the system with Mode 1 setting ‘L’ is stressed with a pressure load the input and output signal of the
amplifier are negative.
Measured values DABI: 4 to approximately 0,2mA, if the system will be stressed furthermore the
‘Error’ LED will light.
Measured values DABU: 0 to -10V
Because of the negative signal the Peak value can not be displayed.
If a pressure load is stressed on tie bars or axles ‘Mode 1’ has to be switch to ‘H’ (high).
With this setting the input and the output signal of the amplifier are positive.
Measured values DABI: 4 to 20mA
Measured values DABU: 0 to 10V
The Peak value of the pressure load will be displayed.
If the system with Mode 1 setting ‘H’ is stressed with a tension load the input and output of the
amplifier are negative.
Measured values DABI: 4 to approximately 0,2mA, if the system will be stressed furthermore the
‘Error’ LED will light.
Measured values DABU: 0 to -10V
Because of the negative signal the Peak value can not be displayed.
4.7 RESET Function
The RESET function serves setting the output signal to zero. Zero shifting is caused by mounting,
slipping or temperature coefficient of some strain sensors.
RESET Function
(Example for active high)
Example for active high
Mode_0
Mode_1
Reset
Comm_Logic
+Vs
GND
Device side
PIN
PIN
PIN
PIN 1
1
1
1
PIN
PIN
PIN
PIN 9
9
9
9
PIN
PIN
PIN
PIN 8
8
8
8
PIN
PIN
PIN
PIN 11
11
11
11
PIN
PIN
PIN
PIN 12
12
12
12
PIN
PIN
PIN
PIN 10
10
10
10
RESET Times
This diagram shows the effects from the
RESET function to the output signal:
•
t1 (> 1ms) = Reset pulse width
During that time the pulse has to be hold.
•
t2 (< 5ms) = Reset settle time
After this time the output signal follows the
sensor signal again.
V
OUT
t
t
M easure
Reset
U
t
1
t
2
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Baumer Electric AG
19.12.07/rut
Frauenfeld, Switzerland
Deactivated RESET function
If the RESET-function with the internal DIP-
switch (see chapter 4.5, DIP switch) is
deactivated, the RESET function can occur
anyhow as follows:
1. Internal DIP switch (Reset deactivated)
2. Power up
3. Tarring over the RESET input
4. On LCD the following message is indicated
Reset ?
Press Button
If the rotary button of the knob is not
applied for 6 seconds this message will
disappear.
Otherwise the message below appears for
3 seconds:
Reset
sucessfully
4.8 PEAK Function
For the duration of one measurement cycle, the
peak function supplies the maximum value of
the output signal. It will be reset automatically
by using the Reset function
t
t
Reset
+10V
1
0
-10V
Signal out
Peak out
4.8.1
Peak value representation on LCD
To display the peak value on the display, the switch 1 of the external DIP switch has to be set to ON.
Voltage output
Current output
Actual measuring value
SIG 6.05V
PEAK 8.04V
Max. measuring value
Actual measuring value
SIG 6.05mA
PEAK 8.04mA
Max. measuring value