Omron RX - 2, Руководство пользователя

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8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8
-4 Co
n
tr
o
l Fu
n
ction
8
8-4
-2 Comme
rcial Switch (CS)
 Parameter
This function can be used to drive the acceleration/deceleration with the inverter and drive in a constant
speed with a commercial power supply for a system where the load inertia moment is large.
If the 035[CS] terminal is turned from on to off with the status where an operation command is sent, the
inverter starts with the frequency matched with the motor rotation speed in free-running after the retry
waiting time [bb-26]. (Starting the frequency matching.)
When the CS terminal is turned ON with the RUN command input, the inverter cuts off its output. Be
sure to maintain the output while the motor sequence is switched.
Precautions for Correct Use
• The operation at the [CS] terminal is similar to the case when starting the frequency matching
is selected. Starting at 0 Hz may occur when:
1. The output frequency is equal to or less than one-half of the base frequency.
2. The induced voltage of the induction motor decays early
3. The lower limit frequency for the frequency matching [bb-42] is set and a speed not more
than the set speed is detected.
• For the frequency matching, extend the retry waiting time [bb-26] when the overcurrent trip
occurs.
• The operation can be also restarted automatically when the power is turned on. In this case,
the reset restart function is used. For more information, refer to 7-5 Start Conditions on page
7-63.
For the behavior of the commercial switching, refer to the following sample connection diagram for the
commercial switching operation and timing.
Use light electrical relays for FWY, RVY, and CSY. The following sequence is a reference diagram for
timing.
Example SET Function Type Notation Description
Common
The third digit of the parameter is “-”:
[Ab-01], [bA-30], [CC-01], etc.
The parameter is common to the first and sec-
ond settings regardless of the SET function.
Always valid.
First setting
The third digit of the parameter is “1”:
[AA101], [bC112], [Hb102], etc.
If the [SET] terminal is off or the [SET] function
is not assigned (off), the first setting is applied.
The data for which the third digit of the parame-
ter is “1” are all valid.
Second setting
The third digit of the parameter is “2”:
[AA201], [bC212], [Hb202], etc.
If the [SET] terminal is on, the second setting is
applied.
The data for which the third digit of the parame-
ter is “2” are all valid.
Item Parameter Data Description
Input terminal function
[CA-01] to
[CA-11]
024
[SET]: Second setting function
OFF: The first setting is valid.
ON: The second setting is valid.
Note If the parameter does not have 024[SET]
assigned, the first setting is valid.
Output terminal
function
[CC-01] to
[CC-07]
012
[SETM]: OFF when SET is OFF; ON when SET is
ON.
8-4-2 Commercial Switch (CS)