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Chapter 7 – Control circuit terminal functions
Overview
Terminal
Terminal function
symbol
FW
Forward run
(00)
(Start/Stop)
RV
Reverse run
(01)
(Start/Stop)
CF1
(02)
CF2
(03)
CF3
(04)
CF4
(05)
JG
Jogging run
(06)
PTC
Connection of exter-
(19)
nal PTC thermistor
AT
Activate input OI (cur-
(16)
rent set value 4-20mA)
2CH
2. stage accelera-
(09)
tion/deceleration
FRS
Free run stop
(11)
function
EXT
External trip
(12)
USP
Prevention of restart
(13)
RS
Reset
(18)
SFT
Software lock
(15)
4
3
2
Input FW closed: Motor starts with forward running direction.
Input FW open: Motor decelerates from forward running.
(same for reverse run using input RV)
Inputs FW and RV both closed: motor decelerates.
Frequency
1
2
3
CF1
ON
ON
CF2
ON
FW
4
RV
The jogging run activated using the terminal JG may serve for setting up a machine
in manual operation mode. When a forward or reverse run command is given, the
frequency configured using A 38 is then sent to the motor. For motor stop, one of
three operating modes can be chosen by configuring A 39.
Only digital input 5 can be programmed as a PTC thermistor input (using C 05).
The terminal L serves as common for the thermistor input.
When the AT input is activated, then the set value will be a 4-20mA current
that has to be supplied at the terminals OI and L.
Using this input the second stage acceleration and deceleration time
configured using A 92 and A 93 is activated.
When the terminal FRS is turned on, frequency to the motor is
When the terminal EXT is turned on, the inverter enters the trip state, stops output
to the motor, and displays E 12. The trip condition can be acknowledged, among
When the USP input is on, the motor does not restart when power supply recovers
following a power supply failure and a running command is active at the same time.
A trip can be acknowledged by activating the RS input. If a reset is given during
normal inverter operation, the motor runs free. The RS input is always a normally
open contact and cannot be configured as normally closed input.
When the SFT input is turned on, the configured parameters are protected
7-1
Chapter 7 – Control circuit terminal functions
Description
Frequency
1
P24
FW
ON
RV
OFF
Example:
4 multistage speeds
ON
ON
2 multistage inputs (CF1 and
CF2) are necessary for 4
ON
different multistage speeds
(3 programmable multistage
ON
speeds plus 1 set value).
switched off and the motor runs free.
others, using the RS input.
from being overwritten.
Forward run
Reverse run
OFF
OFF
ON
OFF
5
4
3
2
1 P24
H
O
OI L FM
CM2
Analog set value
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