Danfoss MCD3000 Series Manual page 23

A setting of 0 seconds allows the MCD3000 to
continue operating without regular RS485 activity.
ATTENTION
In the event of a RS485 Time Out trip the
MCD3000 cannot be reset until the RS485
communication is resumed. If the RS485
communications cannot be immediately re-established
and temporary manual control is required, Par 24
Serial Communications - RS485 Time Out must be set
to 0 seconds.
The MCD3000 includes two motor operating
parameter sets. Parameters 25 - 33 make up the
secondary parameter set and replicate the
primary parameter set, Parameters 1 - 9.
Refer to the Operation section of this manual for
detail on enabling the secondary parameter set.
25 Motor FLC
(Secondary Parameter Set)
Value:
(Depends On Model)Amps
See Par. 1 for Function & Description of choice.
26 Current Limit
(Secondary Parameter Set)
Value:
100% - 550% Motor FLC
See Par. 2 for Function & Description of choice.
27 Current Ramp - Initial Current
(Secondary Parameter Set)
Value:
10% - 550% Motor FLC
See Par. 3 for Function & Description of choice.
28 Current Ramp - Ramp Time
(Secondary Parameter Set)
Value:
1 - 30 second
See Par. 4 for Function & Description of choice.
= factory setting
MG.15.A2.22 – VLT is a registered Danfoss trademar
MCD3000 Series
0 - 100 second
See Par. 5 for Function & Description of choice.
5 - 120 second
See Par. 6 for Function & Description of choice.
1 - 10
1 - 4 = Increased sensitivity
5
6 - 10 = Reduced sensitivity
Depends on Model
See Par. 7 for Function & Description of choice.
15% - 100% Motor FLC
350 %
See Par. 8 for Function & Description of choice.
80% - 550% Motor FLC
350%
See Par. 9 for Function & Description of choice.
1 - 100% Motor FL
1 second
Sets the current at which the Low Current Flag
operates. (Low current flags can occur only when the
motor is running).
Relay Output B can be programmed to indicate the
state of the Low Current Flag. The relay output will
29 Soft Stop Ramp Time
(Secondary Parameter Set)
Value:
30 Motor Thermal Capacity
(Secondary Parameter Set)
Value:
31 Phase Imbalance Sensitivity
(Secondary Parameter Set)
Value:
= Normal sensitivity
32 Undercurrent Trip Point
(Secondary Parameter Set)
Value:
33 Instantaneous Overload Trip Point
(Secondary Parameter Set)
Value:
34 Low Current Flag Set Point
Value:
Function:
0 seconds (Off)
10 seconds
5 (Normal Sensitivity)
20 %
400%
50% Motor FLC
23