Datasheet

Product Data Sheet 2218F/2TDH4PU
02/02/2019 page 7 of 13
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
<= 20 mA
External resistor
External resistor Ra from UBS to US required. All voltages measured
to GND.
Tacho frequency (6 x n) / 60 650 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 P-CH FET
Max. residual current at U
N
I
F
<= 5 mA
Locked rotor protection Auto restart
Locked rotor current at U
N
I
block
approx. 2.000 mA
Clock signal at locked rotor t
3
/ t
4
typical: 3,0 s / 10,0 s