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Function assignment of external terminals and CC-Link communication virtual terminals
(2)
Second function selection signal (RT)
When the RT signal turns ON, the second function becomes valid.
For the RT signal, set "3" in any of Pr. 180 to Pr. 184 (input terminal function selection) to assign the function.
The second function has the following applications.
(a) Switching between normal use and emergency use
(b) Switching between heavy load and light load
(c) Changing of acceleration/deceleration time by broken line acceleration/deceleration
(d) Switching of characteristic between the main motor and sub motor
Second acceleration/deceleration time
RT
RH
RM
When the RT signal is ON, the following second functions are selected at the same time.
Function
Torque boost
Base frequency
Acceleration time
Deceleration time
Electronic thermal O/L relay
Stall prevention
Applied motor
(3)
Operation using start signals (STF and STR signals)
The forward/reverse rotation signals (STF/STR) are used as start and stop signals. Turn ON either of the forward and
reverse rotation signals to start the motor in the corresponding direction. Switch both OFF (or both ON) of the start signals
during operation to decelerate the inverter to a stop.
The frequency can be set with Pr. 4 to Pr. 6 Multi-speed setting (high, middle, low speeds), etc.
Forward
rotation
Reverse
rotation
ON
STF
STR
REMARKS
When Pr. 250 is set to any of "0 to 100", turning OFF the start command coasts the inverter to a stop. (
Parameters referred to
Pr.4 to Pr.6 Multi-speed setting
Pr.250 Stop selection
Acceleration time
is reflected
Time
First Function
Second Function
Parameter Number
Parameter Number
Pr. 0
Pr. 3
Pr. 7
Pr. 8
Pr. 9
Pr. 22
Pr. 71
Time
ON
Refer to page 130
Refer to page 157
Refer to
Page
Pr. 46
113
Pr. 47
126
Pr. 44
135
Pr. 44, Pr. 45
135
Pr. 51
142
Pr. 48
120
Pr. 450
144
5
)
Refer to page 157
165
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