Honeywell VFD CORE

CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
199 63-4528—04
• When momentary power loss is detected, the VFD will block its output and then wait for a specified period of time (determined
by Pr.07-07, called Base-Block Time) before resuming operation. This parameter should be set at a value to ensure that any
residual regeneration voltage from the motor on the output has disappeared before the drive is activated again.
a
07 - 07 Base block Time
Factory Setting: 0.5
Settings 0.1~5.0 seconds
M33680
TIME
B.B. SEARCH WITH MINIMUM OUTPUT FREQUENCY UPWARD TIMING CHART
B.B.
OUTPUT FREQUENCY (H)
OUTPUT VOLTAGE (V)
06-02
OVER -CURRENT
STALL PREVENTION
DURING ACCEL.
FWD RUN
2
1
3
6
INPUT B.B. SIGNAL
STOP VOLTAGE OUTPUT
DISABLE B.B. SIGNAL
WAITING TIME PR.07-07
SPEED SEARCH
SYNCHRONIZATION SPEED DETECTION
6
5
4
3
2
1
4
TIME
B.B. SEARCH WITH LAST OUTPUT FREQUENCY DOWNWARD TIMING CHART
B.B.
OUTPUT FREQUENCY (H)
OUTPUT VOLTAGE (V)
OUTPUT CURRENT
A
FWD RUN
5
2
1
3
6
7
INPUT B.B. SIGNAL
STOP OUTPUT VOLTAGE
DISABLE B.B. SIGNAL
WAITING TIME PR.07-07
SPEED SEARCH
SYNCHRONIZATION SPEED DETECTION
FREQUENCY COMMAND BEFORE B.B.
6
7
5
4
3
2
1
4
TIME
B.B. SEARCH WITH MINIMUM OUTPUT FREQUENCY UPWARD TIMING CHART
B.B.
OUTPUT FREQUENCY (H)
OUTPUT VOLTAGE (V)
07-09
CURRENT LIMIT FOR
SPEED SEARCH
07-09
CURRENT LIMIT FOR
SPEED SEARCH
FWD RUN
5
2
1
3
6
4
5
OUTPUT CURRENT
A
OUTPUT CURRENT
A
INPUT B.B. SIGNAL
STOP OUTPUT VOLTAGE
DISABLE B.B. SIGNAL
WAITING TIME PR.08-06
SPEED SEARCH
SYNCHRONIZATION SPEED DETECTION
6
5
4
3
2
1