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2.8.2
Connection of the DC reactor (FR-HEL)
• Keep the surrounding air temperature within the permissible range (-10 to +50°C). Keep enough clearance around the
reactor because it heats up. (Take 10 cm or more clearance on top and bottom and 5 cm or more on left and right
regardless of the installation direction.)
• When using the DC reactor (FR-HEL), connect it to terminals P/+ and P1.
In this case, the jumper connected across terminals P/+ and P1 must be removed. Otherwise, the reactor will not be
effective.
• Select a DC reactor according to the applied motor capacity. (Refer to
• Since the DC reactor (FR-HEL) is electrically connected to the enclosure through mounting screws, the DC reactor is
earthed (grounded) by being securely mounted to the enclosure. However, if the DC reactor is not earthed (grounded)
securely enough, an earthing (grounding) cable may be used.
NOTE
• The wiring distance must be within 5 m.
• As a reference, the cable gauge for the connection must be equal to or larger than that of the power cables (R/L1, S/L2, T/L3)
and the earthing (grounding) cable. (Refer to
10 cm or more
5 cm or
5 cm or
more
more
P1
Remove
the jumper
page
45.)
5 cm or
5 cm or
more
more
P/+
FR-HEL
page
84.)
2.8 Connection of stand-alone option units
1
2
3
4
5
6
7
8
9
10
61
2. Installation and Wiring
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