Nx Networks NX series user manual 2586, Cooling

5

Installation 25(86)

5.2 Cooling

Enough free space should be left around the frequency converter to ensure sufficient air circulation and cooling. The required dimensions for free space are in the table below.

If several units are mounted above each other the required free space equals C + D (see figure below). Moreover, the outlet air used for cooling by the lower unit must be directed away from the inlet air to be used by the upper unit.

Type		Dimensions
	A	A2	B	C	D
0003—0012 NX_5	20		20	100	50
0016—0031 NX_5	20		20	120	60
0038—0061 NX_5	30		20	160	80
0072—0105 NX_5	80		80	300	100
0140—0205 NX_5	20	200	80	300	200
		(150*)

Table 5-6. Mounting space dimensions

A= clearance around the freq. converter (see also A2 and B)

A2 = clearance needed on either side of the frequency converter for fan change (without disconneting the motor cables)

*= min. clearance for fan change (without disconnecting the

motor cables) between two frequency converters

B= distance from one frequency converter to another or distance to cabinet wall

C= free space above the frequency converter

D= free space underneath the frequency converter

A

A2

C

B B

A

A2

D

NK5_2

		Figure 5-6. Installation space
	Type	Cooling air required [m3/h)
	0004—0015 NX_2
	0003—0012 NX_5	70
	0005—0019 NX_6
	0018—0032 NX_2
	0016—0031 NX_5	190
	0022—0062 NX_6
	0048—0078 NX_2
	0038—0061 NX_5	425
	0085 NX_6
	0092—0150 NX_2	425
	0072—0105 NX_5
	0140—0205 NX_5	650
	0100—0122 NX_6
Table 5-7. Required cooling air.