GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 145)

DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
6
17
6.4.1 Ramp ref
INPUT VARIABLES
Ramp ref
Ramp ref 1
[44] Ramp ref 1 [FF]
[47] Ramp ref 1 (%)
Ramp ref 2
[48] Ramp ref 2 [FF]
[49] Ramp ref 2 (%)
The ramp reference value specifies the speed the drive should reach once the acceleration phase has been com-
pleted. Modifications to the ramp reference value are therefore transferred to the ramp accordingly. The height
of the ramp reference value determines the motor speed. As for the four quadrant drives (6KDV3 ... Q4...) the
rotation direction is determined by the reference polarity.
n
ote
! Two quadrant 6KDV3 ... Q2... drives accept only positive references. Negative values are
not considered!
F F
Min Speed Limit
+
+
T
Ramp Reference Zero
T
Zero
+
-
Jog +
Jog -
Ramp input
Jog
selection
Speed
t t
Speed
Quick stop
COMMAND
0
7
+
Ramp ref 1
Ramp ref 2
t
Speed
Motor potentiometer
function
Multi speed
function
JOG function
Enab motor pot Enab multi spd
Speed min amount
0 rpm
Speed min pos
0 rpm
Speed min neg
0 rpm
Ramp in = 0 Ramp out = 0
Ramp ref 1
0 rpm
Ramp ref 2
0 rpm
Ramp ref (d)
Speed limited
Ramp output (d)
Dig input term 11
In=0 Out=0
Speed input
Figure 6.4.1.1: Ramp references