Data Sheet

Product Data Sheet 3414 N/2
01/31/2019 page 5 of 9
3.2 Electrical Interface - Output
Tacho type
/2 (open collector)
Features
Note
Values
Tacho operating voltage
U
BS
<= 28 V
Tacho signal Low
U
S low
I sink: 2 mA
<= 0,4 V
Tacho signal High
U
S high
I source: 0 mA
<=28 V
Maximum sink current
I
sink
<= 4 mA
External resistor
External resistor Ra from UBS to US required. All voltages measured
to GND.
Tacho frequency
(2 x n) / 60
Tacho isolated from motor
No
Slew rate
=> 0,5 V/us
n = revolutions per minute (1/min)
3.3 Electrical Features
Electronic function
None
Reversed polarity protection
Rectifying diode
Max. residual current at U
N
I
F
<= 5 uA
Locked rotor protection
Auto restart
Locked rotor current at U
N
I
block
approx. 200 mA
Clock signal at locked rotor
t
3
/ t
4
typical: 0,2 s / 1,1 s