Start Signal Operation Selection - Mitsubishi Electric FR-CS82S-025 Instruction Manual

5.8.7

Start signal operation selection

Operation of the start signal (STF/STR) can be selected.
Select the stopping method (deceleration stop or casting) at turn-OFF of the start signal.
Use this function to stop a motor with a mechanical brake at turn-OFF of the start signal.
Pr. Name
250
Stop selection
G106
 2-wire type (STF signal, STR signal)
• The following figure shows the 2-wire type connection.
• As an initial setting, the forward/reverse rotation signals (STF/STR) acts as both start and stop signals. Either one turned
ON will be enabled, and the operation will follow that signal. The motor will decelerate to a stop when both are turned OFF
(or both are turned ON) during the operation.
• The frequency can be set by inputting 0 to 10 VDC between the speed setting input terminals 2 and 5, or with
Multi-speed setting (high speed, middle speed, and low speed)
• By setting = "1000 to 1100", the STF signal input becomes the start command and the STR signal input becomes
Pr.250
the forward/reverse command.
Forward
rotation start
Reverse
rotation start
Forward
rotation
Output frequency
Reverse
rotation
ON
STF
STR
2-wire type connection example (Pr.250 = "9999")
NOTE
• By setting Pr.250 = "0 to 100, 1000 to 1100", the motor will coast to a stop when the start command is turned OFF. (Refer to
page 198.)
• The STF and STR signals are assigned to the STF and STR terminals in the initial status. The STF signal can be assigned to
terminal STF only using Pr.178 STF terminal function selection, and the STR signal can be assigned to terminal STR only
using Pr.179 STR terminal function selection.
Initial value Setting range
0 to 100
9999 1000 to 1100
9999
STF
Inverter
STR
SD
10
2
5
Time
ON
Description
Start signal (STF/
STR)
STF signal: Forward
The inverter output is shut off 0 to 100
rotation start
seconds after the start signal is turned
STR signal: Reverse
OFF.
rotation start
Add 1000 to the desired number of
STF signal: Start
seconds as the setting value of Pr.250 as
signal
required by the STF and STR signal
STR signal: Forward/
settings.
reverse rotation signal
STF signal: Forward
rotation start The motor is decelerated to a stop when
STR signal: Reverse the start signal is turned OFF.
rotation start
. (For multi-speed operation, refer to
5.8 (T) Multi-function input terminal parameters
Stop operation
(refer to page 198)
Pr.4 to Pr.6
page 109.)
5. PARAMETERS
2
2
3
4
5
6
7
8
9
10
145