Terminals for load sharing
The connection cable must be shielded and the max.
length from the adjustable frequency drive to the DC
bar is 25 meters / 81 feet.
Load sharing enables linking of the DC intermediate
circuits of several adjustable frequency drives.
NOTE
Please note that voltages up to 1099 V DC
may occur on the terminals.
Load sharing calls for extra equipment.
For further information, please consult
Load Sharing Instructions MI.50.NX.XX.
Fan Supply
Torque 4.4-5.3 In-lbs
Screwsize: M3
Available in VLT 5122-5552, 380-500 V; 5042-5602,
525-690 V; 5032-5052, 20-240 V in all enclosure
types.
Only for IP 54 units in the power range VLT 5016-5102,
380-500 V and VLT 5008-5027, 200-240 V AC. If the
drive is supplied by the DC bus (loadsharing), the in-
ternal fans are not supplied with AC power. In this case
they must be supplied with an external AC supply.
Electrical installation - brake resistor temperature
switch
Torque: 0.5-0.6 Nm
Screw size: M3
No.
Function
106, 104, 105 Brake resistor temperature switch.
NOTE
This function is only available on VLT
5032-5052, 200-240 V; VLT 5122-5552,
380-500 V; and VLT 5042-5602, 525-690
V.
If the temperature of the brake resistor
gets too high and the thermal switch drops
out, the adjustable frequency drive will
stop braking. The motor will start coasting.
A KLIXON switch must be installed that is
'normally closed'. If this function is not
used, 106 and 104 must be short-circuited
together.
Electrical installation - bus connection
In accordance with the RS 485 (2-conductor) norm, the
serial bus connection is connected to terminals 68/69
on the adjustable frequency drive (signals P and N).
Signal P is the positive potential (TX+,RX+), while sig-
nal N is the negative potential (TX-,RX-).
If more than one adjustable frequency drive is to be
connected to a given master, use parallel connections.
VLT
®
5000 Series
64 MG.51.C5.22 - VLT
p
is a registered Danfoss trademark.
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