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Terminal No.
Function
106, 104, 105
Brake resistor temperature switch.
If the temperature of the brake resistor gets too high
and the thermal switch drops out, the adjustable fre-
quency drive will stop braking. The motor will start
coasting.
4.6.10 Load Sharing
Terminal No.
Function
88, 89
Load sharing
The connection cable must be shielded and the max. length from the adjustable frequency drive to the DC bar is limited to 82 ft [25 m].
Load sharing enables the linking of the DC intermediate circuits of several adjustable frequency drives.
Please note that voltages up to 1099 V DC may occur on the terminals.
Load sharing calls for extra equipment and safety considerations. For further information, see load sharing Instructions MI.50.NX.YY.
Please note that a line power disconnect may not isolate the adjustable frequency drive due to DC link connection
4.6.11 AC line input connections
Line power must be connected to terminals 91, 92 and 93 located on the far left of the unit. Ground is connected to the terminal to the right of terminal
93.
Terminal No.
Function
91, 92, 93
94
Line power R/L1, S/L2, T/L3
Ground
NOTE!
Check the nameplate to ensure that the AC line voltage of the adjustable frequency drive matches the power supply of your plant.
Ensure that the power supply can supply the necessary current to the adjustable frequency drive.
If the unit is without built-in fuses, ensure that the appropriate fuses have the correct current rating.
4 How to Install
VLT HVAC Low Harmonic Drive Instruction
Manual
4-46
MG.16.A1.22 - VLT
®
is a registered Danfoss trademark
4