Honeywell HVAC400x Applications Manual page 94

HVAC400X – APPLICATION MANUAL
Selection
Selection name
number
0 Forw-BACK
A
0 Hz
B
Control signal (CS) 1 activates and causes the output
1.
frequency to increase. The motor operates forward.
CS2 activates, but it does not have an effect on the
2. output frequency because the direction that is set first
has the highest priority.
CS1 becomes inactive and causes the direction to start
3.
to change (FWD to REV) because CS2 is still active.
CS2 becomes inactive and the frequency that is fed to
4.
the motor goes to 0.
CS2 activates again and causes the motor to accelerate
5.
(REV) to the set frequency.
CS2 becomes inactive and the frequency fed to the
6.
motor drops to 0.
A. FWD.
B. REV.
C. Output frequency.
D. Set frequency.
E. Set frequency REV.
EN2B-0417GE51 R0719
P3.2.6 I/O START/STOP LOGIC 0 (ID 300)
Description
The functions activate when the contacts are CLOSED.
CS 1 = Start/stop forward.
CS 2 = Start/stop backwards.
C
1 2 3 4 5 6
Fig. 12. E/S A Start/stop logic = 0
7 8 9 10 11 12 13
Legend
CS1 activates and the motor accelerates (FWD) to the
7.
set frequency.
The Run enable signal is set to OPEN, which causes
8. the frequency to go to 0. Configure the Run enable
signal with parameter P3.5.1.10.
The Run enable signal is set to CLOSED, causing the
9. frequency to increase to the set frequency because CS1
is still active.
The STOP button on the keypad is pushed, and the
10. frequency that is fed to the motor goes to 0. (This signal
works only if P3.2.3 Keypad Master Stop is Enabled.)
The drive starts because the BACK/RESET and START
11.
buttons on the keypad were pushed.
The STOP button on the keypad is pushed again to stop
12.
the drive.
The attempt to start the drive using the START button is
13.
unsuccessful because CS1 is inactive.
F. Run enable.
G. Ctrl signal 1.
H. Ctrl signal 2.
I. Keypad start button.
J. Keypad stop button.
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