Figure 11-49 Digital Input Connections When Pr 6.04 Is - Emerson unidrive sp User Manual

Safety Product Mechanical
Information Information Installation
If Pr 6.04 is changed then a drive reset is required before the function of
T25, T26 or T27 will become active.
Pr 6.04 T25 (Pr 8.22) T26 (Pr 8.23) T27 (Pr 8.24)
Pr 6.29 Pr 6.30
0
(Fast Disable) (Run Forward)
Pr 6.39 Pr 6.30
1
(Run Permit) (Run Forward)
Pr 6.29 Pr 6.34
2
(Fast Disable) (Run)
Pr 6.39 Pr 6.34
3
(Run Permit) (Run)
User User
4
programmable programmable
If Pr 6.04 has been set to a value of 0 to 3, then setting Pr 6.04 to 4 does
not automatically reconfigure terminals T25, T26 and T27 to their default
functions. To return terminals T25, T26 and T27 to their default
functions, one of the following operations should be performed.
• Drive defaults should be restored. See section 5.8 Restoring
parameter defaults on page 104 for details.
• Manually set Pr 6.04 to 4, Pr 6.40 to 0, Pr 8.22 to 10.33, Pr 8.23 to
6.30, and Pr 8.24 to 6.32.
Figure 11-49 Digital input connections when Pr 6.04 is set to 0 to 3
Pr 6.04 is set to 0
21
22
+24V
23
24
25
Run Fwd
26
Run Rev
27
28
29
30
31
Pr 6.04 is set to 2
21
22
+24V
23
24
25
Run
26
Fwd/Rev
27
28
29
30
31
Key
Continuous contact
Momentary contact
262
Electrical Getting Basic
installation Started parameters
Pr 6.40
Pr 6.32 0
(Run Reverse) (Non Latching)
Pr 6.32 1
(Run Reverse) (Latching)
Pr 6.33 0
(Fwd/Rev) (Non Latching)
Pr 6.33 1
(Fwd/Rev) (Latching)
User User
programmable programmable
Pr 6.04 is set to 1
+24V
Run Permit
Run Fwd
Run Rev
Pr 6.04 is set to 3
+24V
Run Permit
Run
Fwd/Rev
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Running SMARTCARD
Optimization
the motor operation
6.40 Enable sequencer latching
RW Bit
OFF (0) or On (1)
This parameter enables sequencer latching. When sequencer latching is
used, a digital input must be used as a run permit or not stop input. The
digital input should write to Pr 6.39. The run permit or not stop input must
be made active to allow the drive to run. Making the run permit or not
stop input inactive resets the latch and stops the drive.
11.21.8 Catch a spinning motor
6.09 Catch a spinning motor
RW Uni
OL
CL
Open-loop
When the drive is enabled with this parameter at zero, the output
frequency starts at zero and ramps to the required reference. When the
drive is enabled with this parameter at a non-zero value, the drive
performs a start-up test to determine the motor speed and then sets the
initial output frequency to the synchronous frequency of the motor.
The test is not carried out and the motor frequency starts at zero if one of
21
the following is true.
22
• The run command is given when the drive is in the stop state
23
• The drive is first enabled after power-up with Ur_I voltage mode
(Pr 5.14 = Ur_I).
24
• The run command is given with Ur_S voltage mode (Pr 5.14 =
25
Ur_S).
26
With default parameters the length of the test is approximately 250ms,
27
however, if the motor has a long rotor time constant (usually large
28
motors) it may be necessary to extend the test time. The drive will do this
29
automatically if the motor parameters including the rated load rpm are
30 set up correctly for the motor.
31
For the test to operate correctly it is important that the stator resistance
(Pr 5.17 or Pr 21.12) is set up correctly. This applies even if fixed boost
(Pr 5.14 = Fd) or square law (Pr 5.14 = SrE) voltage mode is being used.
The test uses the rated magnetizing current of the motor during the test,
therefore the rated current (Pr 5.07, Pr 21.07 and Pr 5.10, Pr 21.10) and
21
power factor should be set to values close to those of the motor,
although these parameters are not as critical as the stator resistance.
22
For larger motors it may be necessary to increase Pr 5.40 Spin start
23
boost from its default value of 1.0 for the drive to successfully detect the
24
motor speed.
25
It should be noted that a stationary lightly loaded motor with low inertia
26
might move slightly during the test. The direction of the movement is
27
undefined. Restrictions may be placed on the direction of this movement
and on the frequencies detected by the drive as follows:
28
29
Pr 6.09
30
0
31
1
2
3
Closed-loop vector and Servo
When the drive is enabled with this bit at zero, the post ramp reference
(Pr 2.01) starts at zero and ramps to the required reference. When the
drive is enabled with this bit at one, the post ramp reference is set to the
motor speed.
When closed-loop vector mode is used without position feedback, and
catch a spinning motor is not required, this parameter should be set to
Onboard Advanced Technical
PLC parameters Data
0 to 3
0 to 1
Function
Disabled
Detect all frequencies
Detect positive frequencies only
Detect negative frequencies only
Unidrive SP User Guide
UL Listing
Diagnostics
Information
US
OFF (0)
US
0
1
Issue Number: 13