22
1.53
TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Enable input (Model 47 only)
A bridge is factory fitted to input terminals DI and GND. After
removal of this bridge, the unit can be enabled via an external
potential-free N/O or a 24 VDC voltage signal.
Fault signal output
In addition to the motor fault signal alluded to in the
paragraph "Continuously variable power module type ...V“
in Chapter 9.2.1, the overheating of the power module is
signalled by the potential-free N/C (60 V AC/DC max. 1 A). In
the event of a fault, the control signal has to be locked to 0 V
via the controller.
Cable lengths
Maximum permitted 100 m cable length for enable input, 0-10
VDC control signal and fault signal contact.
Voltage supply and fuse
The fan and power module are together supplied by 1 line with
230 V/5 Hz voltage. An LED operating indicator is positioned on
the connecting board in the power module. A protective fuse
Ø5x20 mm is also incorporated on the connecting board as the
main fuse and
up to approx. 01.2014
a TR5 fuse is fitted on the
secondary side for the 24 V voltage
(Model 47 only)
and on the
power board. Refer to Table 5 for values. Maximum on-site fuse
10 A.
Leave a minimum gap of 20 cm between low voltage and high
voltage cables.
Cabling
The connecting cables (not even motor cable up to a length
of 2.5 m) need not normally be shielded. In exceptional cases,
for instance where cables are laid in electromagnetically highly
loaded or sensitive areas, it may be useful to use shielded
cables. In this case, one end of the shield must be connected to
the protective conductor.
Connecting board
Power board
Main fuse
24 V voltage
Models 44, 45
and 46
T 2.5 A
./.
F 2.5 A
Model 47
T 5.0 A
T 315 mA
(up to approx.
01.2014)
T 5.0 A
Tabelle 5
Содержание Lufterhitzer TOP Series
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