YASKAWA U1000 Series Technical Manual page 271

Figure 5.61 shows an operation example of Fast Stop.
Figure 5.61
Output Frequency
NOTICE: Rapid deceleration can trigger an overvoltage fault. When faulted, the drive output shuts off, and the motor coasts. To avoid
this uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast Stop time to C1-09.
Setting 16: Motor 2 selection
The drive has the capability to control two induction motors independently. A second motor may be selected using a
multi-function digital input as shown in
Note: The motor 2 selection function cannot be used when PM motor is used.
Figure 5.62
When switching between motor 1 and motor 2, the parameters used to control those motors also change. Below,
Table 5.37 lists the parameters that correspond to each motor.
No.
C1-: Acceleration/Deceleration Time
C3-: Slip Compensation
C4-: Torque Compensation
C5-: Speed Control (ASR)
E1-, E3-: V/f Pattern
E2-, E4-: Motor Parameters
F1- (PG Speed Control Card Settings)
Note: 1. When using 2 motors, the motor overload protection selection (oL1) set to L1-01 applies to both motor 1 and motor 2.
2. It is not possible to switch between motor 1 and motor 2 during run. Doing so will trigger the "rUn" alarm.
3. There is a 500 ms delay when switching between motors equipped with a PG encoder for feedback.
4. The motor 2 selection function cannot be used when PM motor is used.
If a digital output is programmed for "Motor 2 selection" (H2-01, H2-02, or H2-03 = 1C), the output is closed when
motor 2 is selected.
Setting 18: Timer function input
This setting configures a digital input terminal as the input for the timer function. Use this setting combination with the
timer function output (H2- = 12).
Setting 19: PID disable
When the PID function has been enabled by parameter b5-01, it can be indefinitely disabled by closing a digital input.
When the input is released, the drive resumes PID operation. Also refer to
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Run/Stop
Fast-Stop
H1- = 17
ON
Figure 5.61 Fast Stop Sequence
Figure 5.62.
Drive
Motor switch input
Figure 5.62 Motor Selection
Table 5.37 Parameters for Switching Between Two Motors
Setting 16 Open (Motor 1)
C1-01 to C1-04
C3-01 to C3-04
C4-01
C5-01 to C5-08, C5-12, C5-17, C5-18
E1-, E2-
F1-01 to F1-21
Refer to b4: Timer Function on page 200
ON
ON
Decelerates at C1-09


C1-05 to C1-08

C3-21 to C3-24

C4-07

C5-21 to C5-28, C5-32, C5-37, C5-38

E3- to E4-

F1-02 to F1-04, F1-08 to F1-11, F1-14, F1-31 to F1-37
PID Block Diagram on page
5.7 H: Terminal Functions
ON
TIME
M
Motor 1
M
Motor 2
Setting 16 Closed (Motor 2)
for details.
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