Control Techniques Unidrive Servo Series Product Data page 9

introduction to macros
Macro 3 – Preset Speeds
By using this macro up to four preset frequencies /
speeds can be used. Preset values must be
programmed into individual parameters. Frequency /
speed selection is done by activating terminal 29 and
putting a binary combination on terminals 24 and 26.
Terminal 24 Terminal 26
Open Open
Open Closed
Closed Open
Closed Closed
Drive Connections
Analog Ch 1
0-10v DC
Thermistor
Speed Output
Load Output
Preset Select 1 Input
Drive Reset Input
Preset Select 2 Input
Run Forward Input
Run Reverse Input
An/Preset Select Input
External Trip Input
x 2
Speed
Run Forward
& Current
& Reverse
x 1
0-10V DC
2 Inputs
Thermistor for 4
Preset Speeds
Speed
As set in Pr 0.25
As set in Pr 0.26
As set in Pr 0.27
As set in Pr 0.28
1
2
3
4
5
6
7
8
9
10
11
21
22
23
24
25
26
27
28
29
30
31
External
Reset Input
P1 and 1
P1 and 2
P1 and 3
P1 and 4
Macro 4 – Torque control
When this macro is selected a drive can be operated
in Speed or Torque control by using terminal 29.
If in Speed control mode, speed is maintained
independent of load within the limits of the drive. In
Torque control mode the drive will attempt to reach the
speed set point but only with the torque available as
defined by the torque reference signal.
Torque/Current
Torque Ref.
Current Feedback (torque component)
Drive Connections
Torque Ref.
Speed Ref.
Thermistor
Speed Output
Load Output
Drive Speed Output
Drive Reset Input
Min. Speed Output
Run Forward Input
Run Reverse Input
Speed/Torque Select Input
External Trip Input
x 2
Speed
Run Forward
& Current
& Reverse
x 1
0-10V DC
2 Outputs
for A1 Speed
Thermistor
& At Min.Speed
PI (Current)
Post Ramp
Ref
1
2
3
4
5
6
7
8
9
10
11
21
22
23
24
25
26
27
28
29
30
31
External
Reset Input
RPM
0% 100%
(Speed)
Amps
0% 100%
(Torque)
9