Ultra
Assembly, installation and operating instructions
31
7.2.1 Connection (**00)
Fig. 14: Ultra with motor junction box
Voltage supply and activation
All sizes require a voltage supply of 230 V / 50/60 Hz and can
be activated via a control input of 0-10 VDC (Ri > 49 KOhm).
Types 96xx58 and 96xx56 can alternatively be operated via
an integral MODBUS RTU interface. The shield of the BUS
cable can be wired through to terminal SH, if required.
The motor junction box contains a relay with a floating
changeover contact, 24 to 250 V/ 2 A. This signals an error
message from the EC fan or a power failure. In fault-free op-
eration, the relay is energised (Contact C – NO closed). In
case of a fault, the relay becomes de-energised (Contact C -
NO open). The fault signalling chain is protected by a relay
with a unit fuse Ø5x20 mm, T0.1A.
Terminal configuration for control of unit heater with EC fan
0.1AT
G
nd
A+
R.Uc
Ub
Ri > 49KΩ
250V AC / 2A
B-
M.
U
c
PE
L
N
0
-1
0
V
G
n
d
SH
C
N
C
N
O
AD
EC
mSM_
L
PE L
N
C NC NO
D1 Ub Uc GND A+ B- SH
X1
B-
A+
GND
Uc
Ub
D1
S
Ls
N
L
PE
PE PE
rt
ge
bl
sw
bn
bn
bl
w
s
w
s
gn
ge
Mains 230 V/50 Hz
Fault signal contact
Control signal 0-10 VDC
*) Control line max. 100 m. Lay
shield from 20 m only on signal
source side (PE).
Fan connection side
Control via 0 - 10 VDC
The 0 - 10 VDC control signal is interpreted for speed according to the following values:
Control signal
Function
0 V
Off
2 - 10 V
n
(2 V)
- 100%
The speed can be limited to approx. 50% of the maximum speed by the potentiometer in the junction box.
Содержание Ultra 73 Series
Страница 2: ......
Страница 68: ...Ultra Assembly installation and operating instructions 68 13 Certificates...