Omron SYSDRIVE 3G3RV, Руководство пользователя

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Multi-function Digital Inputs (H1-01 to H1-05)
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Setting Precautions
• When
both external search commands 1 and 2 are set for the multi-function contact terminals, an OPE03
(invalid
multi-function input selection) operation error may occur. Set either external search command 1 or
external
search command 2.
• If
speed search during startup is selected when using V/f control with PG, the Unit will start from the fre-
quency
detected by PG.
• If
performing speed search using external search commands, add an external sequence so that the period
when
the run command and external search command are both ON is at the very least the Minimum Base-
block
Time (L2-03).
•
If
the Inverter output is equipped with a contact, set the contact operation delay time in the Speed Search
Wait
Time (b3-05). The factory setting is 0.2 s. When not using the contact, you can reduce the search time
by
making the setting 0.0 s. After waiting for the speed search wait time, the Inverter starts the speed
search.
• Parameter
b3-02 is a current detection speed search (current detection level for search completion). When
the
current falls below the detection level, the speed search is viewed as completed, and the motor acceler-
ates
or decelerates to the set frequency. If the motor cannot restart, lower the set value.
• If
an overcurrent (OC) is detected when using speed search after recovery following a power loss, lengthen
the
Minimum Baseblock Time (L2-03).
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Application Precautions for Speed Searches Using Estimated Speed
• When
using V/f control with or without a PG, always perform stationary autotuning for only line-to-line
resistance
before using speed searches based on estimated speeds.
• When
using open loop vector control, always perform rotational autotuning before using speed searches
based
on estimated speeds.
•
If
the cable length between the motor and Inverter is changed after autotuning has been performed, per-
form
stationary autotuning for only line-to-line resistance again.
Set
Value
Function
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
61
External
search command 1
OFF:
Speed search disabled (Start from lowest output frequency)
ON:
Speed estimation (Estimate the motor speed, and start search from estimated speed)
Current
detection (Start speed search from maximum output frequency)
Yes No Yes
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External
search command 2
OFF:
Speed search disabled (Start from lowest output frequency)
ON:
Speed estimation (Estimate the motor speed, and start search from estimated speed) (Same operation as exter-
nal
search command 1)
Current
detection: Start speed search from set frequency (reference frequency when search command was
input).
Yes No Yes
IMPORTANT
The motor will not operate when stationary autotuning or stationary autotuning only for line-to-line
resistance is performed.