5.7 H: Terminal Functions
274 YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Setting 47: Node setup
If the SI-S3 option card is connected, closing this terminal will set a node address for operation on a CANopen network.
Setting 60: DC Injection Braking command
When a DC Injection Braking command is input while the drive is stopped, DC Injection Braking operation is activated.
When a Run command or a Jog command is input, DC Injection Braking is released. Refer to b2: DC Injection Braking
on page 191 for details on setting up the DC Injection Braking function.
The diagram below illustrates how the DC Injection Braking function works.
Figure 5. 65
Figure 5.65 DC Injection Braking Input Timing Diagram
Setting 61, 62: External Speed Search command 1, 2
These input functions can be used to enable Speed Search even if parameter b3-01 = 0 (no Speed Search at start). Refer
to Speed Search Activation on page 194 for details on how to use the input signals. Refer to b3: Speed Search on
page 192 for more about Speed Search.
Note: Operator error oPE03 will result if both Speed Search 1 and Speed Search 2 are set to the input terminals at the same time.
Setting 63: Field Weakening
Enabled in V/f Control. When closed, Field Weakening is performed. For details, Refer to d6: Field Weakening and
Field Forcing on page 242.
Setting 67: Communication test mode
The drive has a built-in function for self-diagnosing serial communications operation. The test involves wiring the send
and receive terminals of the RS-485/422 port together. The drive transmits data and then confirms that the
communications are received normally. Refer to Self-Diagnostics on page 584 for details on how to use this function.
Setting 6A: Drive enable
A digital input configured as a “Drive enable” (H1- = 6A) will prevent the drive from executing a Run command
until the input is closed. When the input is open, the digital operator will display “dnE” to indicate that the drive is
disabled.
If a Run command is enabled before the terminal set for “Drive enable” closes, then the drive will not run until the Run
command is cycled (i.e., a new Run command is required). If the input is opened while the drive is running, the drive will
stop according to the stop method set to b1-03 (Refer to b1-03: Stopping Method Selection on page 184).
Setting 71: Speed/Torque Control switch
Switches the drive between Torque Control and Speed Control. Torque Control is enabled when the terminal is closed,
and Speed Control is enabled when the terminal is open. Note that parameter d5-01 must be set to 0 when using this
function. Refer to d5: Torque Control on page 238 and Switching Between Torque and Speed Control on page 240.
Setting 72: Zero Servo
Used to activate the Zero Servo function that can be used to lock the rotor at a certain position. Refer to b9: Zero Servo
on page 215 for details.
Setting 75, 76: Up 2, Down 2 command
The Up 2 and Down 2 function can be used to add a bias to the frequency reference. The input programmed for 75 will
increase the bias and the input programmed for 76 will decrease it. Tabl e 5 .39 explains how the Up/Down 2 function
works depending on the frequency reference source and parameters d4-01, d4-03, and d4-05. Refer to d4: Frequency
Reference Hold and Up/Down 2 Function on page 234 for detailed explanations of these and other Up/Down 2 related
DC Injection braking
command
FWD Run command
Output frequency
DC Injection
braking
DC Injection
braking
DC Injection Braking
Start Frequency
(b2-01)
OFF
OFF OFF
OFFON
ON
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