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HEIDENHAIN ND 261 Series Manual page 5

Working with the measured value display unit

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D-Sub Connection EXT
Danger to internal components!
Voltage sources from external circuitry must conform to the recommenda-
tions in EN 50178 for low-voltage electrical separation. Connect inductive
loads only with a quenching diode parallel to the inductance.
Use only shielded cable!
Connect the shield to the connector housing.
Pin
Function
Meas. value ≥ trigger limit A1 (P62)
15
Meas. value ≥ trigger limit A2 (P63)
16
17
Meas. value < lower sorting limit (P18)
18
Meas. value > upper sorting limit (P19)
19
Error (see "Error Messages" )
14
Display value is zero
2
Reset display to zero, clear error message
3
Preset display to value from P79
25
Cross over reference marks
4
Ignore reference mark signal
22
Pulse: output the measured value
23
Contact: output the measured value
Signal levels
LOW
–0.5 V ≤ U ≤ 0.9 V
Inputs
U ≤ 0.4 V
Outputs
Description of input and output signals
Input signals
Output signals
Note that these times will increase if features are active (such as the sorting
mode) or if the measured values are being displayed in degrees/minutes/sec-
onds.
I ≤ 6 mA
I ≤ 100 mA
• Internal pull-up resistor 1 kΩ
• Triggering by make contact against 0 V or
LOW level over TTL component
• Delay for Zero reset/Preset: t
• Minimum pulse duration for all signals: t
• Open collector outputs,
active LOW
• Signal output delay:
≤ 42 ms
t
d
• Zero crossover signal
minimum duration,
trigger outputs A1, A2:
≥ 180 ms
t
0
Pin
1
10
5
6
7
8
9
12
13
24
11
20
21
HIGH
3.9 V ≤ U ≤ 15 V
U ≤ 32 V
≤ 2 ms
d
min
C
B
U CE
E
Pin 1.10
Function
0 V
0 V
Do not use
Do not use
Do not use
Do not use
Do not use
Do not use
Do not use
Do not use
Vacant
Vacant
Vacant
I ≤ 10 µA
≥ 42 ms
I ≤ 100 mA
+ U B ≤ 32 V
0 V

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Nd 261aNd 261v