Start Signal Operation Selection - Mitsubishi Electric FR-A820-00046 Instruction Manual

Parameters
5.12.11

Start signal operation selection

Operation of start signal (STF/STR) can be selected.
Select the stopping method (deceleration to 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.
250
G106
2-wire type (STF, STR signal)
● The following figure shows the connection in 2-wire type.
● As an initial setting, 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
perform a deceleration stop when both are turned OFF (or both are turned ON) during the
operation.
● There are methods such as inputting 0 to 10 V DC between the speed setting input terminals 2
and 5, or Pr. 4 to Pr. 6 (multi-speed setting (fast, medium, slow)) for the frequency setting signal.
(For multi-speed operation, refer to page 5-197.)
● By setting Pr. 250 = "1000 to 1100, 8888", STF signal becomes start command and STF signal
becomes forward/reverse command.
Fig. 5-217:
FR-A800
Name Initial value
Stop
9999
selection
Forward
rotation start
Reverse
rotation start
STF
STR
2-wire type connection example (Pr. 250 = "9999")
(T) Multi-Function Input Terminal Parameters
Setting range
Start signal (STF/STR)
STF signal: Forward rotation
start
0 to 100 s
STR signal: Reverse rotation
start
STF signal: Start signal
1000 s to 1100 s
STR signal: Forward/reverse
rotation signal
STF signal: Forward rotation
start
9999
STR signal: Reverse rotation
start
STF signal: Start signal
8888
STR signal: Forward/reverse
rotation signal
STF
Inverter
STR
PC
10
2
5
ON
ON
Description
Stop operation
(Refer to page 5-447)
Turn OFF the start signal and
it will coast to stop after the
specified time period.
When set to 1000 s to 1100 s,
it will coast to stop after
(Pr. 250 – 1000) s.
It will perform deceleration
stop when the start signal is
turned OFF.
Time
I002656E_G
5 - 447