User Manual Instruction Manual

Installing Regulator Board Control Wiring 6-13
6.7 Speed Reference Control
The following sections describe methods of obtaining the drive speed reference.
6.7.1 Auto Reference Source
The drive speed reference can be obtained from a number of different sources. The
source is determined by drive programming and the condition of the Speed Select
Digital Inputs, Auto/Manual digital inputs or reference select bits of a drive command
word.
The default source for a speed reference is the selection programmed in Speed Ref A
Sel (90). If Speed Select digital inputs are defined on the terminal block, the drive
could use other parameters as the speed reference source.
6.7.2 Manual Reference Source
The manual source for speed command to the drive is either the OIM requesting
manual control or the control terminal block (analog input) if a digital input is
programmed to Auto/Manual.
6.7.3 Changing Reference Sources
The selection of the active Speed Reference can be made through digital inputs, DPI
Command, Jog Key, or Auto/Manual OIM operation. Refer to figure 6.2.
6.7.4 Torque Reference Source
The torque reference is normally supplied by an analog input or network reference.
Switching between available sources while the drive is running is not available. Digital
Inputs programmed as “Speed Sel 1, 2, 3” and the OIM Auto/Manual function do not
affect the active torque reference when the drive is in Vector Control Mode.
Figure 6.4 – Speed Reference Control Flowchart
= Default
Speed Ref B Sel, Parameter 093
Preset Speed 2, Parameter 102
Preset Speed 3, Parameter 103
Preset Speed 4, Parameter 104
Preset Speed 5, Parameter 105
Preset Speed 6, Parameter 106
Preset Speed 7, Parameter 107
TB Man Ref Sel, Parameter 096
Digital Input
DPI Port Ref 1-6, See Parameter 209 DPI Command
Jog Speed, Parameter 100
Jog Command
HIM Requesting Auto/Manual
Tr im
[Digital Inx Select]:
Speed Sel
321
001
011
010
100
101
110
111
Auto
Man
Drive Ref Rslt
Commanded
Frequency
Min/Max Speed
Acc/Dec Ramp
and
S Curve
Pure Reference
Post Ramp
to follower drive for
Frequency Referenc
e
to follower drive for
Frequency Referenc
e
Auto Speed Ref Options
Manual Speed Ref Options
Slip Compensation
1 "Slip Comp"
None
0 "Open Loop"
PI Output 2 "Process Pi"
Speed Adders [Speed Mode]:
PI Exclusive Mode
[PI Configuration]:
Bit 0, Excl Mode = 0
Output Frequency
Mod Functions
(Skip, Clamp,
Direction, etc.)
Speed Ref A Sel, Parameter 090
000