Frequency Measurement / Pulse Counters - HBM Spider8 Operating Manual

D-26

3.8 Frequency measurement / pulse counters

8
9
15
15-pin socket
Spider8
Connecting to carrier-frequency module SR55,
channels 0 and 1
Incremental rotary encorder with TTL/HCMOS output
1
Metering pulses 1
Direction
or metering
pulses 2 (90
offset to 1)
Pin 2 = 10V, max. 100mA (total of all channels)
Pin10= Directional signal for metering pulse 1
Pin 9 and Pin 10:
Pin 3: Clear = counter reset
o
Clear
or metering pulse 2 input, 90
max. "20V,
Switching threshold High u2.5V, Low t2V
Connecting Ý Connecting transducers
15-pin socket
+5V
10kΩ
9
+5V 10kΩ
10
2
4
+5V
3
forwards
backwards
o
offset to metering pulse 1
u850µs
INA
INB (High)
+10V
Ground
10kΩ
Clear (Low
active)
Shield