HEIDENHAIN ND 261 v.2 - Manual (Page 5)

Outputs
Inputs
Use only shielded cable!
Connect the shield to the connector housing.
B UCE
E
C
Pin 1.10
0 V
+ UB
≤
32 V
I
≤
100 mA
D-Sub Connection EXT
Pin Function Pin Function
15 Meas. value
≥
trigger limit A1 (P62) 1 0 V
16 Meas. value
≥
trigger limit A2 (P63) 10 0 V
17 Meas. value < lower sorting limit (P18) 5 Do not use
18 Meas. value > upper sorting limit (P19) 6 Do not use
19 Error (see “Error Messages” ) 7 Do not use
14 Display value is zero 8 Do not use
2 Reset display to zero, clear error message 9 Do not use
3 Preset display to value from P79 12 Do not use
25 Cross over reference marks 13 Do not use
4 Ignore reference mark signal 24 Do not use
22 Pulse: output the measured value 11 Vacant
23 Contact: output the measured value 20 Vacant
21 Vacant
Signal levels LOW HIGH
Inputs –0.5 V
≤
U
≤
0.9 V I
≤
6 mA 3.9 V
≤
U
≤
15 V
Outputs U
≤
0.4 V I
≤
100 mA U
≤
32 V I
≤
10 µA
Description of input and output signals
Input signals • Internal pull-up resistor 1 k
Ω
• Triggering by make contact against 0 V or
• LOW level over TTL component
• Delay for Zero reset/Preset: t
d
≤
2 ms
• Minimum pulse duration for all signals: t
min
≥
42 ms
Output signals • Open collector outputs,
• active LOW
• Signal output delay:
• t
d
≤
42 ms
• Zero crossover signal
minimum duration,
trigger outputs A1, A2:
t
0
≥
180 ms
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.
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.