16
Rittal EC fan-and-filter unit assembly and operating instructions
Connection diagrams
EN
14 Connection diagrams
M
EC
1˜
L N PE
0 – 10
V
PW
M
+10
V
GND
Speed
M
1~
L
N PE
3238.5xx/3239.5xx
3240.5xx/3241.5xx/3243.5xx/
3244.5xx/3245.5xx/.6xx
Fig. 13: Connection diagrams
CON10
CON11
CON12
L
N
PE
+10 V
10 V/PWM
GND
Speed
PE 1
I max. = 1.1 mA
I max. = 10 mA
47 k
680 R
ZMM 47
47 k 1 uF
1.6 AT
AC 1
AC 2
P
3
1
2
3
4
3
2
1
3
2
3
2
2
1
10 K
1
2
12 V
15 V
100 % PWM n = max.
10 % PWM n = min.
<10 % PWM n = 0
1
4
1
4
2
N
1 – 10 V
10 V n = max.
1 V n = min.
<1 V n = 0
1
2
3
4
3240.5xx/3241.5xx/3243.5xx/3244.5xx/3245.5xx/3245.6xx
Interface/connector
Fan/motor
Fig. 14: Connection diagram 3240.5xx/3241.5xx/3243.5xx/3244.5xx/3245.5xx/3245.6xx
1
Max. speed (as delivered)
2
Adjustable speed
3
Adjustable speed via PWM 1 – 10 kHz
4
Adjustable speed via potentiometer
