9
Centrifugal In-line EC Duct Fans – RR EC
Installation and Operating Instructions
PU/A 10
3
2
4
1
Potentiometer
min. rotational speed
7
6
5
LED 1
LED 2
S 1
R 1
prinziple of connection:
without
PU/A 10 with multiple EC-motors
LED wiring, without switch release
+10VDC
0-10V
GND
EC-fan Nr. 1
fan supply
1~ / 3~
max. 24V !
GND
output:
10 V / 10mA
0-10V input current:
0,33 mA
+10VDC
0-10V
GND
EC-fan Nr. 2
output:
10 V / 10mA
0-10V
:
input current
0,33 mA
+10VDC
0-10V
GND
EC-fan Nr. 3
output:
10 V / 10mA
0-10V
:
input current
0,33 mA
Attention ! Connecting in parallel of +10V DC not allowed !
Required total current in the example:
= Poti c load current of all fans
= 1,27mA + 3 x 0,33mA = 2,26mA
PU/A Poti burden
= 7,9-16,5kOhm
at 10V
= 1,27-0,6mA
(depend on min. Poti)
Maximum possible number of fans (same types) with the sample fans
= Max. ouput current of the 1st fan - Poti current / load current of a fan
= (10mA - 1,27mA) / 0,33mA = 26,45 = max. 26 fans
PU/A 10
3
2
4
1
Potentiometer
min. rotational speed
7
6
5
LED 1
LED 2
S 1
R 1
prinziple of connection:
with
PU/A 10 with multiple EC-motors
LED wiring via relay (closer), without switch release
+10VDC
0-10V
GND
EC-fan Nr. 1
fan supply
1~ / 3~
max. 24V !
GND
output:
10 V / 10mA
0-10V
:
input current
0,33 mA
Attention ! Connecting in parallel of +10V DC not allowed !
total current needed in the example:
= Poti c LED c
load current of all fans
= 1,27mA + 6mA + 3 x 0,33mA = 8,26mA
PU/A Poti burden
= 7,9-16,5kOhm
at 10V
= 1,27-0,6mA
(depend on min. Poti)
Maximum possible number of fans (same types) with the sample fans
= Max. output current of the 1st fan - Poti current - LED current /
load current of a fan
= (10mA - 1,27mA - 6mA) / 0,33mA = 8,27 = max. 8 Ventilatoren
relay
+10VDC
0-10V
GND
EC-fan Nr. 2
output:
10 V / 10mA
0-10V
:
input current
0,33 mA
relay
+10VDC
0-10V
GND
EC-fan Nr. 3
output:
10 V / 10mA
0-10V
:
input current
0,33 mA
relay
LED = 6mA
85278 001 SS-1035 09.01.19
E
7 .1 .4 Connection principle SS-1035
7 .2 Technical data for control inputs
8 .0 Servicing and maintenance
m
Touching live parts will lead to electric shock .
Before any servicing and maintenance work, isolate the fan from the mains power supply and protect against
being switching on again!
Number of potential fans with
PU / A
PU / A
SU / A-3 10
EUR EC
ETR / DER
ETR / DER
Type
Poti-supply
in V / mA
Control / setpoint
input in V / A (load)
from the 10 V fan
supply (no PU/A
LED)
from the10 V fan
supply (with PU/A
LED)
from the 10 V
fan supply
from the 10 V
EUR EC
supply
from the 10 V
fan supply
EDR / ETR supply
with external pow-
er supply NG24
RR EC 100
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 125
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 160
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 200 A
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 200 B
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 250 A
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 250 B
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 315 A
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
RR EC 315 B
10 V / 10 mA
0-10 V / 1,0 mA
(Ri = 10 kOhm)
8
2
8
10
not possible
10
CHAPTER 8
SERVICING AND
MAINTENANCE
EN
