YASKAWA L1000A Technical Manual page 205

Figure 5.16 shows an operation example of Fast Stop.
Figure 5.16
Up/Down/Stop
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 5.17
When switching between motor 1 and motor 2, the parameters used to control those motors also change. Below,
Table 5.11 lists the parameters that correspond to each motor.
No.
C1-: Acceleration/Deceleration Time
E1-, E3-: V/f Pattern
E2-, E4-: Motor Parameters
Note: 1. The drive can switch from motor 2 to operate motor 1 in V/f Control based on the speed reference set for motor 2. Refer to
Switch Selection on page 185
2. It is not possible to switch between motor 1 and motor 2 during run. Doing so will trigger the "rUn" alarm.
3. It is not possible to switch between motors when CLV/PM control mode is selected.
4. The motor 2 selection function is available only with OLV control mode (A1-02 = 0).
5. When switching from motor 1 to motor 2, check to make sure that motor 2 is operating.
If a digital output is programmed for "Motor 2 selection" (H1-01, H1-02, or H1-03 = 1C), motor will be selected when the
output is closed.
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). Refer to
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Fast Stop
H1- = 17
ON
Output Speed
Figure 5.16 Fast Stop Sequence
Figure 5.17.
Drive
Motor switch input
Figure 5.17 Motor Selection
Table 5.11 Parameters for Switching Between Two Motors
Setting 16 Open (Motor 1)
C1-01 to C1-04
E1-, E3-
for details.
b4: Delay Timers on page 169
ON
ON
Decelerates at C1-09


C1-12 to C1-13

E3-, E4-
for details.
5.7 H: Terminal Functions
ON
YEA_TMonly
TIME
M
Motor 1
common_
M
Motor 2 TMonly
Setting 16 Closed (Motor 2)
5
Motor
205