GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 221)

DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
6
93
The table and graph below show the interaction between the selection and the corresponding reference value.
REFERENCE
+ 0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
Multi speed sel.
0
Ramp ref (d)
Speed sel 0
Bit 0 Not Selected
Speed sel 1
Bit 1 Not Selected
Speed sel 2
Bit 2 Not Selected
Ramp ref 1
0 rpm
Multi speed 3
0 rpm
Multi speed 2
0 rpm
Multi speed 1
0 rpm
Multi speed 4
0 rpm
Multi speed 5
0 rpm
Multi speed 7
0 rpm
Multi speed 6
0 rpm
Ramp ref 2
0 rpm
Enable multi spd
Disabled
Table 6.14.2.1: Multi speed function
7
6
5
4
3
2
1
0
Multi
speed
1
Multi
speed
2
Multi
speed
3
Multi
speed
4
Multi
speed
5
Multi
speed
0
Multi
speed
6
Multi
speed
7
Speed sel 0
Speed sel 2
Speed sel 1
Figure 6.14.3.2: Multi speed function
In order to operate the Multi speed function, it must be enabled with Enab multi spd parameter.
The required reference value is selected with the Speed sel 0, Speed sel 1 and Speed sel 2 signals.
The selection of the reference values is carried out via the keypad or the serial interface.
The reference values are signed so that they can be defined for a particular rotation direction of the drive. As for
the 6KDV3 ... Q2... the reference must have a positive polarity.
When the Multi speed function is enabled, Multi speed 0 is defined by the addition of the reference values
Ramp ref 1 and Ramp ref 2.