Start/Stop Logic Select; Injection Braking Level; Injection Braking Time - Control Techniques unidrive sp Advanced User's Manual

Parameter Keypad and
Menu 6
structure display
bus voltage above the detection threshold Vml
demand that is fed into the current control system and therefore the gain parameters Pr 4.13 and Pr 4.14 must be set up for optimum control. See
Pr 4.13 and Pr 4.14 on page 95 for set-up details.
The following table shows the voltage levels used by drives with each voltage rating.
Voltage level
Vuu
Vml
1
Vml
2
Vml
3
Vuu Restart
* Vml is defined by Pr 6.48. The values given in the table are the default values.
1
6.04

Start/stop logic select

Drive modes Open-loop, Closed-loop vector, Servo
Bit SP FI
Coding
Range Open-loop, Closed-loop vector, Servo
Default Open-loop, Closed-loop vector, Servo
Update rate Background read
This parameter is provided to allow the user to select several predefined digital input routing macros to control the sequencer. When a value between
0 and 3 is selected the drive processor continuously updates the destination parameters for digital I/O T25, T26 and T27, and the enable sequencer
latching bit (Pr 6.40). When a value of 4 is selected the destination parameters for these digital I/O and Pr 6.40 can be modified by the user. (Note any
changes made to the destination parameters only become active after a drive reset.)
Pr 6.04 T25
0 Pr 6.29
1 Pr 6.39 Not stop
2 Pr 6.29
3 Pr 6.39 Not stop
4 User prog
6.06

Injection braking level

Drive modes Open-loop
Bit SP FI
Coding
Range Open-loop
Default Open-loop
Update rate Background read
Defines the current level used during DC injection braking as a percentage of motor rated current as defined by Pr 5.07.
6.07

Injection braking time

Drive modes Open-loop
Bit SP FI
Coding
Range Open-loop
Default Open-loop
Update rate Background read
Defines the time of injection braking during phase 1 with stopping modes 3 and 4 (see Pr 6.01 on page 123) for injection braking stop.
124
Parameter Parameter
x.00 description format
and the drive will continue to operate normally. The output of the mains loss controller is a current
3
200V drive 400V drive
175 330
205* 410*
Vml - 10V Vml - 20V
1 1
Vml + 10 Vml + 15
1 1
215 425
DE TE VM DP ND
0 to 4
4
T26
Pr 6.30 Run Forward
Pr 6.30 Run Forward
Pr 6.34 Run
Pr 6.34 Run
User prog
DE TE VM DP ND
1
0 to 150.0 %
100.0 %
DE TE VM DP ND
1
0.0 to 25.0 s
1.0
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Advanced parameter
Macros
descriptions
575V drive 690V drive
435
540* 540*
Vml - 25V Vml
1
Vml + 50 Vml
1
590
RA NC NV PT US RW BU
1 1
T27
Pr 6.32 Run Reverse
Pr 6.32 Run Reverse
Pr 6.33 Fwd /Rev
Pr 6.33 Fwd/Rev
User prog
RA NC NV PT US RW BU
1 1 1
RA NC NV PT US RW BU
1 1
Serial comms Electronic
Performance
protocol nameplate
435
- 25V
1
+ 50
1
590
PS
1
Pr 6.40
0 (non latching)
1 (latching)
0 (non latching)
1 (latching)
User prog
PS
1
PS
1
Unidrive SP Advanced User Guide
Feature look-
up table
Issue Number: 7