YASKAWA T1000V Technical Manual page 167

Setting 60: DC Injection Braking 2
This function can be used to warm up the motor before starting it, and to keep the motor warm when stopped. The DC
Injection 2 command can be activated using a digital input (H1-
function.
Note: 1. If a Run command is input while DC Injection 2 is active, then DC Injection 1 will be performed for the time set in b2-03.
Acceleration will not start until the time set in b2-03 has passed.
2. If the frequency reference is kept at zero after a Run command has been entered and the time b2-03 has passed, then the drive will
continue to perform DC Injection 2 until the digital input is released.
3. A Run command has priority over the DC Injection 2 command.
4. If b2-01 is set to a smaller value than parameter E1-09 (minimum frequency), then DC Injection Braking will begin as soon as the
frequency falls to the value set to E1-09.
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).
to b3-01: Speed Search Selection at Start on page 118
Search on page 115 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 65/66: KEB 1 (N.C.)/2 (N.O.)
A digital input programmed for this function can be used to activate the KEB 1 function and detect power supply return.
If KEB 1 is activated, the drive uses the method selected in parameter S4-01 to perform KEB.
Description
KEB 1 deceleration
Normal operation
Refer to S4: KEB Mode Selection on page 221
Setting 67: Communication Test Mode
The drive has a built-in function for self-diagnosing the 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 the
communications are received normally.
Setting 7C/7D: Short Circuit Braking (N.O./N.C.) (PM OLV only)
An input programmed for this function can be used to activate Short Circuit Braking in Open Loop Vector Control for
PM motors. By linking all three phases of a PM motor it creates a braking torque in a rotating motor and can be used to
stop a rotating motor or prevent a motor from coasting by external forces.
Description
Normal operation
Short-Circuit Braking
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Frequency Reference
Output Frequency
b2-01 (Zero Speed Level)
E1-09 (Min. Frequency)
0 Hz
Run Command
ON
H1- = 60
(DC Injection Braking 2
Command)
Setting 65 (N.C.)
for details on how to use these input settings.
Refer to Self-Diagnostics on page 406
Setting 7C (N.O.)
= 60). A Run command is not necessary to use this
b2-03 (DC Injection
Braking Time at Start)
b2-10 (DC Injection b2-02 (DC Injection
Braking Current 2) Braking Current)
OFF
ON
for details on how to use the input signals.
Digital Inputs
Open
Closed
for details on how to use this function.
Digital Inputs
Open
Closed
5.7 H: Terminal Functions
OFF
Refer to b3: Speed
Setting 66 (N.O.)
Closed
Open
Setting 7D (N.C.)
Closed
Open
Refer
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