Specifications

MCD3000 Series
✭ = factory setting
20 MG.15.A4.22 - VLT is a registered Danfoss trademark
Pro
g
rammin
g
Description of choice:
The instantaneous overload trip point should be set to
trip the motor when it begins to stall.
Reaction time of the instantaneous overload protection
can also be adjusted. Refer Par. 14 Instantaneous
Overload Protection Delay.
Instantaneous Overload protection is disabled during
starting and stopping.
10 Excess Start Time Protection
Value:
0 - 255 seconds
✭ 20 seconds
Function:
Sets the maximum allowable start time.
Description of choice:
Set for a period slightly longer than the normal motor
starting time. The MCD3000 will then trip if the start
time exceeds normal. This provides early indication
that the application conditions have changed or that
the motor has stalled. It can also protect the soft
starter from being operated outside its rated start
capability.
A setting of 0 disables this protection.
ATTENTION
Ensure the Excess Start Time protection
setting is within the MCD3000 rated capability.
11 Phase Rotation Protection
Value:
0 - 2
✭ 0 (Off)
0 = Off (Forward & Reverse rotation permitted)
1 = Forward Rotation Only
2 = Reverse Rotation Only
Function:
Sets the allowable phase rotation sequence of the
incoming supply.
Description of choice:
The MCD3000 is itself phase rotation insensitive. This
function allows motor rotation to be limited to one
direction only. Set the protection according to
application requirements.
12 Phase Imbalance Protection Delay
Value:
3 - 254 seconds
✭ 3 seconds
Function:
Delays tripping on detection of a phase imbalance
greater than allowed by the Phase Imbalance
Sensitivity setting. (Par. 7 & Par. 31)
Description of choice:
Set to avoid unnecessary tripping due to temporary
phase imbalances.
13 Undercurrent Protection Delay
Value:
0 - 60 seconds
✭
5 seconds
Function:
Delays tripping on detection of a motor current lower
than the programmed Undercurrent Trip Point. (Par. 8
& Par. 32)
Description of choice:
Set to avoid unnecessary tripping due to temporary
undercurrent situations.
Undercurrent protection is disabled during starting and
stopping.
14 Instantaneous Overload Protection Delay
Value:
0 - 60 seconds ✭ 0 seconds
Function:
Delays tripping on detection of a motor current higher
than the programmed Instantaneous Overload Trip
Point. (Par. 9 & Par. 33)
Description of choice:
Set to avoid unnecessary tripping due to temporary
high overload situations.