Data Sheet

Product Data Sheet 8454/2 H4P
01/30/2019 page 7 of 11
3.3 Electrical Interface - Output
Tacho type
/2 (open collector)
Features
Note
Values
Tacho operating voltage
U
BS
<= 60 V
Tacho signal Low
U
S low
I sink: 2 mA
<= 0,4 V
Tacho signal High
U
S high
I source: 0 mA
<=60 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
207 Hz
Tacho isolated from motor
No
Slew rate
=> 0,5 V/us
n = revolutions per minute (1/min)
3.4 Electrical Features
Electronic function
Speed-Controlled
Reversed polarity protection
Rectifying diode
Max. residual current at U
N
I
F
<= 1 mA
Locked rotor protection
Auto restart
Locked rotor current at U
N
I
block
approx. 1.350 mA
Clock signal at locked rotor
t
3
/ t
4
typical: 0,5 s / 10 s