Operation Details, Dms 300; Operation; Powering-Up The Dms; Starting The Motor - Danfoss VLT DMS 300 Manual

Operation

Once the DMS has been installed, wired and
programmed according to the instructions,
it can be operated.

Powering-up the DMS

Power may now be applied to the DMS unit.
The "On" LED should glow when the 24VCD
Control Supply is turned On.

Starting the motor:

Connect +24VDC to the "Reset/ Coasting
stop inverse input (27).
To start the motor in the Forward direction,
use the Start CW Input (18). To initiate a stop,
open the Start CW Input.
To start the motor in the Reverse direction, use the
Start CCW Input (19).This feature is optional. To
initiate a stop, open the Start CCW Input.
If the direction of rotation is wrong, change any
two of mains or motor phases.
Disconnecting the +24VDC to the "Reset/ Coasting
stop inverse input (27) will disable the DMS and
cause the motor to coast to stop.
NOTE
If both Start CW & Start CCW inputs are
active together, the motor will stop.

Brake Release

(For variants with Braking function only -
variants SB, EB, ER).
When a Start is initiated, the DMS automatically
generates a brake release command. This will release
the brakes before the motor starts running.
The motor brake can also be released without
starting the motor by connecting +24VDC to
the Brake Release input (124).
NOTE
Mains supply to the DMS is required for
the operation of Brake Release. The
Electromechanical brake supply is not
short-circuit protected.
MG.90.F2.22 - VLT is a registered Danfoss trademark
Decentral Solutions

Operation with AS-i Interface

The AS-i switch profile S-7.E is used, having the
following inputs and outputs:
• Start CW (DO)
• Start CCW (D1)
• Brake Control (D2)
• Reset (D3)
• Ready output(D0)
• Run Output (D1)
• Fault Output (D2)
The profile codes with the different variants are:
• Profile 7E 1 for Extended
• Profile 7E 3 for Extended with Brake
• Profile 7E 4 for Extended with Brake & Reverse
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