The WDP3-014 positioning controller can be operated without ventila-
tion, if the minimum clearances (10 cm) are observed.
Ventilation
The WDP3-018 positioning controller can be operated without ventilation
up to a phase current of 3.7 A and an ambient temperature of 50°C.
If these values are exceeded or if the status display “07” repeatedly
indicates overtemperature, the unit must be ventilated externally (fig. 2-3).
The fan on the WDP3-018 unit must be mounted at the bottom. The
airstream must pass through the unit from bottom up (see fig. 2-2). The
arrow on the fan indicates the direction of the airstream if the fan is
connected correctly (red = 24 VDC, black = 24 VGND).
Fasten the fan with four screws at the bottom of the unit after having cut
out the grille (see chapter 6.2.1). Connect the fan to the external 24 VDC
voltage supply.
Accessory fan
NOTE
Ensure that the airstream in and around the unit is unobstructed.
0.1 2.0 2.4 2.7 3.1 3.4 3.7 4.1 4.4 4.8 5.1 5.4 5.8 6.1 6.5 6.8 [A]
without fan
Current
with fan
for WDP3-018
Airstream
1.0 m/s
Airstream
0.5 m/s
0
5
10
15
20
25
30
35
40
45
50
Adm. ambient temperature [
C]
Fig. 2-3 Temperature –
phase current – ventilation
Installation
2-4
WDP3-01X Ident. no.: 00441109760
