Omron VARISPEED E7 User Manual page 101

Speed Search: b3
Param-
eter
Number
Speed search
selection (current
b3-01 detection or
speed calcula-
tion)
5
Speed search
operating current
b3-02
(current detec-
tion)
Speed search
deceleration time
b3-03
(current detec-
tion)
Speed search wait
time (current
b3-05 detection or
speed calcula-
tion)
Bi-directional
b3-14 speed search
selection
14
5-
Name Description
Enables/disables the speed search
function for the RUN command
and sets the speed search method.
0:Disabled, speed calculation
1: Enabled, speed calculation
2: Disabled, current detection
3: Enabled, current detection
Speed Calculation:
When the search is started, the
motor speed is calculated and
acceleration/deceleration is per-
formed from the calculated speed
to the specified frequency (motor
direction is also searched).
Current Detection:
The speed search is started from
the frequency when power was
momentarily lost and the maxi-
mum frequency, and the speed is
detected at the search current level.
Sets the speed search operation
current as a percentage, taking the
Inverter rated current as 100%.
Usually not necessary to set. When
restarting is not possible with the
factory settings, reduce the value.
Sets the output frequency decelera-
tion time during speed search in 1-
second units.
Sets the time for deceleration from
the maximum output frequency to
the minimum output frequency.
When a speed search is performed
after recovering from a momen-
tary power loss, the search opera-
tion is delayed for the time set here.
If e.g. a contactor is used at the out-
put side of the inverter set this
parameter to the contactor delay
time or more.
Can be used to turn off the bi-
directional capabilities of the speed
calculation form of speed search.
Then speed search will only be per-
formed in the last known direction.
0: Disabled
1: Enabled
Change
Setting Factory during Access
Range Setting Opera- Level
tion
0 to 3 2 No A
0 to
120% No A
200
0.1 to
2.0 s No A
10.0
0.0 to
0.2 s No A
20.0
0 or 1 1 No A
MEMO-
BUS Page
Register
191H 6-38
192H 6-38
193H 6-38
195H 6-38
19EH 6-38