Emotron FDU Series, Инструкция по эксплуатации, Страница: 70 / 260

66 Main Features CG Drives & Automation 01-7491-01r0
Enable
Input must be active (HI) to allow any Run signal. If the
input is made LOW, the output of the AC drive is
immediately disabled and the motor will coast.
Stop
If the input is low then the AC drive will stop according to
the selected stop mode set in menu [33B] “Stop Mode”. Fig.
71 shows the function of the Enable and the Stop input and
the Stop Mode=Decel [33B].
To run the input must be high.
Fig. 71 Functionality of the Stop and Enable input.
Reset and Autoreset operation
If the AC drive is in Stop Mode due to a trip condition, the
AC drive can be remotely reset by a pulse (“low” to “high”
transition) on the Reset input, default on DigIn 8.
Depending on the selected control method, a restart takes
place as follows:
Level-control
If the Run inputs remain in their position the AC drive will
start immediately after the Reset command is given.
Edge-control
After the Reset command is given a new Run command
must be applied to start the AC drive again.
Autoreset is enabled if the Reset input is continuously active.
The Autoreset functions are programmed in menu
“Autoreset [250]”.
Run Inputs Level-controlled
The inputs are set as default for level-control. This means
that an input is activated by making the input continuously
“High”. This method is commonly used if, for example,
PLCs are used to operate the AC drive.
The examples given in this and the following paragraphs
follow the input selection shown in fig. 72.
Fig. 72 Example of wiring for Run/Stop/Enable/Reset inputs.
The Enable input must be continuously active in order to
accept any run-right or run-left command. If both RunR
and RunL inputs are active, then the AC drive stops
according to the selected Stop Mode. Fig. 73 gives an
example of a possible sequence.
CAUTION!
If the Enable function is not programmed
to a digital input, it is considered to be
active internally.
NOTE: Stop Mode=Coast [33B] will give the same
behaviour as the Enable input.
!
(06-F104_NG)
t
t
STOP
(STOP=DECEL)
OUTPUT
SPEED
ENABLE
OUTPUT
SPEED
(or if Spinstart is selected)
NOTE: If the control commands are programmed
for Keyboard control or Com, Autoreset is not
possible.
CAUTION!
Level-controlled inputs DO NOT comply
with the Machine Directive, if the inputs
are directly used to start and stop the
machine.
!
X1
1
12
22
11
A+
B-
2
3
4
5
6
7
8
9
10
13
14
15
16
17
18
19
20
21
Stop
Reset
+24 V
RunL
RunR
Enable