Rittal 3237 Series Installation Manual page 19

For SK 3245 only!
1
3
2
10 V
<1 V
3
15 V
I max. = 10 mA
2
12 V
1
100 % PWM n = max.
10 % PWM n = min.
<10 % PWM n = 0
Fig. 12: Connection diagram 3245
1 Max. speed (as delivered)
2
Adjustable speed
3
Adjustable speed via PWM 1 – 10 kHz
4 Adjustable speed via potentiometer
C ecti
CON10 L
CON11 N
CON12 PE
1 GND
2 0...10 V/PWM
3 +10 V
4 Speed
Tab. 8: Explanations to fig. 12
Rittal fan-and-filter unit assembly and operating instructions
13 C
2
2
CON10
1 – 10 V
CON11
1
n = max.
CON12
1 V n = min.
n = 0
3
4
2
3
1
2
10 K
4
1
Fu cti Assig e t
Power supply 200...240 V AC, 50...60 Hz
Neutral conductor
PE conductor
GND connection of the control interface
Control input 0...10 V or PWM, galvanically isolated, impedance 100 kΩ
Voltage output 10 V max. 1.1 mA, galvanically isolated, not short circuit-protected
Speed output Open Collector, 1 pulse per revolution, galvanically isolated
ecti diagra s
Interface Fan/motor
L
AC 1
1.6 AT
N
AC 2
PE
PE 1
+10 V
I max. = 1.1 mA
10 V/PWM
47 k 47 k
GND
Speed
680 R
ZMM 47
E
P
N
1 3
2 4
1 uF
3 1
4 2
19