
4-106
Notes:
• Minimum base block time (07-18) is also used by the DC injection braking function
• Set the minimum base block time as required (07-18).
• Increase minimum Baseblock time if over-current "OC" condition occurs.
• After speed search has ended the AC Drive returns to normal operation.
07-19
Speed Direction Search Operation Current Default: 50
Range
【
0–100
】
%
07-20
Speed Search Operating Current Default: 20
Range
【
0–100
】
%
07-21
Integral time of speed searching Default: 2
Range
【
0.1–10.0
】
Sec
07-22
Delay time of speed searching Default: 0.2
Range
【
0.0–20.0
】
Sec
07-23
Voltage recovery time Default: 2
Range
【
0.1–5.0
】
Sec
07-24
Direction-Detection Speed Search Selection Default: 1
Range
【
0
】
: Disable
【
1
】
: Enable
07-18
Minimum base block time Default: –
Range
【
0.1–5.0
】
Sec
During a momentary power failure, the AC Drive continues to operate after power has been restored when parameter
07-00 is set to 1.
When a momentary power failure is detected, the AC Drive will automatically shut off the output and stay in base
block mode (B.B.) for the time set in (07-18).
The AC Drive will automatically perform a speed search when power is restored and power outage time exceeded
the minimum base block time (07-18); refer to the following figure below for additional information.
t
t
t
t
t
t
Momentary
power loss
Minimum B.B.
Time (07-18)
Inverter B.B.
time
(b) Minimum baseblock time (07-18) is
shorter than momentary power loss time
Momentary
power loss
Minimum B.B.
Time (07-18)
Inverter B.B.
time
(a) Minimum baseblock time (07-18) greater
than momentary power loss time
07-15
DC Injection Brake Mode Default: 1
Range
【
0
】
: Voltage Mode
【
1
】
: Current Mode