32
1.54
Ultra
Comfortable indoor climate in high-end interiors
Installation and operating instructions
Cable protection
Make sure that the fuse for the mains power connection takes into
consideration the cable used, type of cabling, operating conditions and
applicable standards. Maximum on-site fuse 16 A.
10.3.3.1 Control with 0-10 VDC type ...33/34
EMC-compliant installation of control cables
To avoid interference, ensure that there is sufficient distance between the
mains power and control cables. Do not allow the length of the control
cables to exceed 100 metres, and make sure that they are shielded above
a length of 20 metres! When using a shielded cable, make sure that the
shield is just connected on one side, i.e. only to the signal source with the
protective conductor (as short and induction-poor as possible!)
All models require a power supply 230 V/50/60 Hz and can be controlled
via a control input 0-10 V DC (Ri > 49 kOhm). Models 96 and 97 can
alternatively be operated via an integral MODBUS RTU interface. The shield
of the BUS cable can also be wired through to terminal SH, if required.
The motor junction box contains a relay with a potential-free changeover
24 to 250 V/2 A. This reports a fault message for the fan or power failure
only for models 96 and 97. In fault mode, the relay is energised (Contact
C – NO closed).
In the event of a fault, the relay becomes de-energised (Contact C - NO
open)
There is no fault signal contact in the fans in models 84 and 85 and
therefore no fan fault or power failure is reported!
Switch the unit on and off via the control input.
Do not switch the unit on and off via the mains power supply.
The 0-10 V control signal is interpreted with respect to its speed according
to the table (refer to Table 8). Please refer to the relevant type in the
Technical Catalogue for the speed for the 2 V control signal.
The speed can be limited to approx. 50% of the maximum speed using the
potentiometer in the connection box.
70% speed is factory pre-set for types ending in 34.
There is an option to enable the fan in models 96 and 97 via an external
potential-free N/O contact for low voltage. To do this, the factory-fitted
bridge between terminals D1 and Ub must be removed.
Voltage supply and fuse
The fault signalling chain is protected by a device fuse Ø5x20 mm, T0,1A.
Maximum on-site fuse 16 A.
Ultra with motor junction box
Control signal
Ultra speed
0 V
OFF
2.0 - 10 V
n
(2V)
-100%
Table 8
298593
647752
650097
Fan connection side
e.g. type 96xx33 / 97xx33
Controller connection assignment
Unit heater with EC fan
*) Control line max. 100 m, screened from 20 m,
applied on one side on the side of the signal
sources (PE).
Mains power
supply:
230V/50 Hz
Fault
signal
contact
Control
signal
0-10 V DC
