HVAC400X – APPLICATION MANUAL
EN2B-0417GE51 R0719
98
Suite: I/O START/STOP LOGIC 4
Selection number Selection name
Description
4
Start-REV
You can use this function to prevent an accidental start. Before you
can start the motor again, you will have to open the start/stop contact.
CS1 = Start/stop forward.
CS2 = Start backwards if CS1 = CLOSED.
Fig. 16. I/O A Start/stop logic = 4
Legend
1.
Control signal (CS) 1 activates and causes the output
frequency to increase. The motor operates forward.
because CS2 is inactive.
7.
The Run enable signal is set to OPEN, which causes
the frequency to go to 0. Configure the Run enable
signal with parameter P3.5.1.10.
2.
CS2 activates and causes the direction to start to
change (FWD to REV).
8.
Before the drive can start, you must open and close
CS1 again.
3.
CS2 becomes inactive, which causes the direction to
start to change (REV to FWD) because CS1 is still
active.
9.
The STOP button on the keypad is pushed and the
frequency that is fed to the motor goes to 0. (This signal
only works if P3.2.3 Keypad Master Stop is Enabled.).
4.
CS1 becomes inactive and the frequency goes to 0.
10.
Before the drive can start, you must open and close
CS1 again.
5.
CS2 activates, but the motor does not start because
CS1 is inactive.
11.
CS1 becomes inactive and the frequency goes to 0.
6.
CS1 activates and causes the output frequency to
increase again. The motor operates forward because
CS2 is inactive.
A.
FWD.
F.
Run enable.
B.
REV.
G.
Ctrl signal 1.
C.
Output frequency.
H.
Ctrl signal 2.
D.
Set frequency.
I.
--
E.
Set frequency REV.
J.
Keypad stop button.
1
2
4
3
5 6 7
8
9 10
11
C
0 Hz
A
B
F
G
H
J
D
t
E
