12.PWM CONTROL SIGNAL: (AT RATED VOLTAGE 48VDC ; 25 DEGREE C)
SIGNAL VOLTAGE RANGE: -0.8~20 VDC
*THE FREQUENCY FOR CONTROL SIGNAL OF THE FAN SHALL BE ABLE TO ACCEPT
A 1KHZ~30KHZ.
*THE PREFERRED OPERATING POINT FOR THE FAN IS 25K HZ.
*AT 100% DUTY CYCLE,THE ROTOR WILL SPIN AT MAXIMUM SPEED.
*AT 0~20% DUTY CYCLE,THE ROTOR WILL SPIN AT MINIMUM SPEED.
*WITH CONTROL SIGNAL LEAD DISCONNECTED,THE FAN WILL SPIN AT MAXIMUM
SPEED.
*AT 48VDC 25KHZ 30% DUTY CYCLE ,THE FAN WILL BE ABLE TO START FROM A DEAD STOP .
13. SPEED VS PWM CONTROL SIGNAL: (AT RATED VOLTAGE 48V ; 25 DEGREE C
; PWM SIGNAL WITH 5 VDC TTL OR CMOS LEVELS & 25 KHZ)
14. PWM CONTROL LEAD WIRE INPUT IMPEDANCE:
THD1348HE
PAGE 8
TOTAL
5.00A100
50 0.85A
0.20A0~20
SPEED R.P.M. (REF.)
12500±10%
6100±10%
2450±10%
DUTY CYCLE
(%)
20.0 VDC MAX.
2.0 VDC MIN.
0.8 VDC MAX.
-0.8 VDC MIN.
DUTY CYCLE=
*100(%)
t
T
HIGH SIGNAL:
LOW SIGNAL:
YELLOW WIRE(PWM CONTROL)
5
.5 VDC.
100
330K
