Datasheet

Product Data Sheet REF100-11/14/2P
02/02/2019 page 6 of 12
3.3 Electrical Interface - Output
Tacho type /2 (open collector)
Features Note Values
Tacho operating voltage U
BS
Min.: 5,0 V Max.: 30,0
V
Tacho signal Low U
S low
I sink: 2 mA <= 0,4 V
Tacho signal High U
S high
I source: 0 mA <=30,0 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)
3.4 Electrical Features
Electronic function Speed-Controlled
Reversed polarity protection Rectifying diode
Max. residual current at U
N
I
F
<= 100 uA
Locked rotor protection Auto restart
Locked rotor current at U
N
I
block
approx. 2.200 mA
Clock signal at locked rotor t
3
/ t
4
typical: 0,4 s / 10,0 s