YASKAWA V1000 Technical Manual page 185

Freq. Ref.
Condition d4-03
Source
1
2
Multi-Step
Speed
Reference
3
4
Multi-Step Value
Speed other
5
Reference than 0
6
Other
(analog
communicati
7
ons, etc.)
8
9
Other
(analog
communicati
ons, etc.)
Value
other
10
than 0
Setting 7A/7B: KEB Ride-Thru 2 (N.C./N.O.)
A digital input programmed for this function can be used to activate the KEB 2 function and detect power supply return.
Description
KEB 2 deceleration
Normal operation
Refer to Kinetic Energy Backup (KEB) Function on page 208
Setting 7C/7D: Short Circuit Braking (N.O./N.C.) (OLV/PM 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 (like windmill effect in fan applications etc.).
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
Table 5.26 Up/Down 2 Operations
d4-05 d4-01
0 • Accelerates (increases the bias) while the Up
2 function is closed
• Decelerates (decreases the bias) while Down 2
is closed
0 • Holds output frequency (holds the bias) when
1
no Up 2 or Down 2 input or both active.
• Resets the bias when the reference changes
0
• Operates with the frequency reference in all
other situations.
• Accelerates (increases the bias) while the Up
2 function is closed,
1 -- • Decelerates (decreases the bias) while Down 2
is closed.
• Otherwise operates at the frequency reference
0 • When the Up 2 is enabled, drive accelerates up
to the frequency reference plus d4-03 (bias is
increased for d4-03).
• When Down 2 is enabled, drive decelerates
down to the frequency reference minus d4-03
(bias is decreased for d4-03).
--
1
• Holds output frequency (holds the bias) when
no Up 2 or Down 2 input or both active.
• Resets the bias when the reference changes
• Operates with the frequency reference in all
other situations.
0 • Accelerates (increases the bias) while the Up
2 function is closed
• Decelerates (decreases the bias) while Down 2
is closed
• Holds output frequency (holds the bias) when
0 0
no Up 2 or Down 2 input or both active.
1
• When during accel/decel. the frequency
reference changes for more than d4-07, bias
value is held until the output frequency meets
the reference (speed agree).
• Accelerates (increases the bias) while the Up
2 function is closed,
0 1 -- • Decelerates (decreases the bias) while Down 2
is closed.
• Otherwise operates at the frequency reference
0 • When the Up 2 is enabled, drive accelerates up
to the frequency reference plus d4-03
(increases the bias for d4-03).
• When Down 2 is enabled, drive decelerates
down to the frequency reference minus d4-03
--
(decreases the bias for d4-03).
1
• When during accel/decel the frequency
reference changes for more then d4-07, bias
value is held until the output frequency meets
the reference (speed agree).
Setting 7A (N.C.)
Operation
Digital Inputs
Open
Closed
for details on how to use these input settings.
5.7 H: Terminal Functions
Frequency Saved
Not saved
If the bias and frequency reference
are constant for 5 s, the bias is added
to the active frequency reference and
reset afterwards.
Not saved
Not saved
If the bias and frequency reference
are constant for 5 s, the bias is added
to the active frequency reference and
reset afterwards.
Not saved
If the bias is constant for 5 s, it is
saved to parameter d4-06. The
frequency reference cannot be
overwritten, so only the bias is
saved.
Not saved
Not saved
If the bias is constant for 5 s, it is
saved to parameter d4-06. The
frequency reference cannot be
overwritten, so only the bias is
saved.
Setting 7B (N.O.)
Closed
Open
5
185