Data Sheet for Product
GAMMA instabus
Technical Product Information
February 2007
Switching/Dimming Actuator N 526E02 5WG1 526-1EB02
8x AC 230 V / 16 A
Siemens AG N 526E02, 4 pages Technical manual
Automation and Drives Group
Electrical Installation Technology © Siemens AG 2007 Update: http://www.siemens.com/gamma
P.O.Box 10 09 53, D-93009 Regensburg Subject to change without prior notice
2.5.1.12/1
Product and applications description
The switching/dimming actuator N 526E02 is a N-system
DIN-rail mounted device for controlling up to eight
groups (channels) of fluorescent lamps via the DC 1-10
V control terminal of dimmable electronic ballasts (e.g.
ECG-Dynamic-type from Osram).
In addition there is per channel a switching contact for
direct switching on/off of the connected fluorescent
lamps. This contact can be operated manually via a slide
switch which also indicates the actual switching state of
the channel (when switching manually as well as when
switching via the bus). A channel is switched on when
the slide is in the lower position.
Different functions can be configured per channel such
as for switching on/off fluorescent lamps, dimming up /
down or setting a particular dimming level.
With the ETS (Engineering Tool Software) the applica-
tion program is selected, its parameters and addresses
are assigned appropriately and downloaded into the
switching/dimming actuator.
One channel of the N 526E02 switching/dimming actua-
tor can control several dimmable electronic ballasts.
Their number is limited by the switching capacity and by
the control power. If the on/off function is not used via
the switching contact of the switching/dimming actuator,
the number of controllable ECGs is only dependent on
the load of the DC 1-10 V control voltage. This might
allow to control a larger number of ECGs (see Technical
Specifications below).
The power supply of the N 526E02 electronics is pro-
vided via the bus (i.e. it requires no additional power
supply). When projecting an installation it has to be con-
sidered that a N 526E02 represents a double (and for
short times even a triple) bus load and takes up to 30
mA from the bus.
Application program
The switching/dimming actuator N 526E02 works only
together with the application program 25 A8 Switch-/
Dimm Actuator 981301. This new application program
contains several modifications and new functions (e.g.
an integrated 8-bit scene control). The application pro-
gram can be loaded from ETS2 V1.3 onwards.
Connection example
N
PE
L
+
-
26
3
+
-
N
PE
L
+
-
26
+
-
N
PE
L
+
-
26
+
-
Switching/Dimming
Actuator N 526E
N
PE
L
Load circuit
AC 230V
L1
PE
N
ECG Dynamic
+
-
26
25
fluorescent lamp
+
-
Channel A
b
u
s
c
o
u
p
l
i
n
g
u
n
i
t
C
o
n
t
r
o
l
D
C
0
.
.
.
1
0
V
S
u
p
p
l
y
A
C
2
3
0
V
S
w
i
t
c
h
i
n
g
A
C
2
3
0
V
D
i
m
m
i
n
g
D
C
0
.
.
.
1
0
V
i
n
s
t
a
b
u
s
E
I
B
2
1
L
L
The channels B to H have to be connected correspond-
ingly.
Installation instructions
• The device may be used for permanent interior instal-
lations in dry locations within distribution boards or
small casings with DIN-rail TH35-7.5 according to EN
60715.
V
DANGER
• The device must be mounted and commissioned by an
authorised electrician.
• A safety disconnection of the device must be possible.
• Free DIN-rail areas with stuck-in data-rail must be
covered with covers (order no. 5WG1 192-8AA01).
• The device may not be opened.
• For planning and construction of electric installations,
the relevant guidelines, regulations and standards of
the respective country are to be considered.