5.7 H: Terminal Functions
164
YASKAWA ELECTRIC
SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
shows an operation example of Fast-stop.
Figure 5.41
Figure 5.41 Fast-stop Sequence
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 motors independently. A second motor may be selected using a multi-function
digital input (H1-
= 16) as shown in
.
Figure 5.42
Figure 5.42 Motor Selection
Motor 2 is selected when the input set for Motor 2 Selection closes. When operating motor 2,
• E3-
and E4-
become valid for motor control.
Refer to E3: V/f Pattern for Motor 2 on page 151
E4: Motor 2 Parameters on page 152
• Accel/decel times set in parameters C1-05, C1-06, C1-07, and C1-08 are activated (
Refer to C1-01 to C1-08: Accel,
Decel Times 1 to 4 on page 133
for details).
• E4-14 is used as gain for slip compensation instead of C3-01.
• E4-15 is used as gain for torque compensation instead of C4-01.
• A digital output programmed for “Motor 2 Selection” (H2-01, H2-02, H2-03 = 1C) will be switched on.
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 a "rUn" alarm.
Setting 18: Timer Function Input
This setting configures a digital input terminal as the input for the timer function.
Refer to b4: Delay Timers on page 120
for details.
Setting 19: PID Control Cancel
When the PID Function has been enabled by b5-01 (PID Mode Selection), it can be indefinitely disabled by closing a
digital input configured as a PID Disable (H1-
= 19). When the input is released, the drive resumes PID operation.
Refer to PID Block Diagram on page 123
for more information on this function.
Setting 1A: Accel/Decel Time Selection 2
Used to select accel/decel times 3 and 4 in combination with the Accel/Decel Time Selection 1 command.
to C1-08: Accel, Decel Times 1 to 4 on page 133
for details.
Setting 1B: Program Lockout
When an input is programmed for Program Lockout, parameters values can be monitored but not changed as long as this
input is open.
Run/Stop
TIME
Fast-Stop
H1- = 17
Decelerates at C1-09
ON
ON
ON
ON
Output Frequency
M
M
Drive
Motor 1
Motor 2
Motor switch input
