ACMAXX Datasheet, PDF (121/192 Pages) ebm-papst – Compact fans for AC and DC

Speed setting
with control voltage or PWM ^A PWM
– The control variable is a PWM signal or analogue control voltage.
Speed setting via control voltage Type A
– Standard control range 0 ... 5 V.
Fan
Customer
(+) Power
Input
(-) 0V Ground
Speed setting via PWM Type P
– Standard PWM signal in 2 versions
a) PWM frequency 2kHz (0-100%), Open collector input
b) 4-Wire interface to Intel specification for 12 VDC fan,
PWM frequency 20 kHz, incl. speed signal /2
Standard curve P / A
n max
n min
0
0 5 10
0
0
90 100% PW M
5V
(Optional) 10 V
A
– Optional control range 0 ... 10 V.
Fan
Customer
(+) Power
Input
(-) 0V Ground
Fan
Customer
(+) Power
(+) Internal Ref.
Input
(-) 0V Ground
Optional – selectable curve P / A
n max
n min
0
0
0
100 %
5V
(Optional) 10 V
P WM
A
121