Honeywell SmartVFD HVAC2 Applications Manual page 134

1 Control signal (CS) 1 actives causing the
output frequency to rise. The motor runs
forward.
2 If start forward signal [CS1] and start
reverse signal [CS2] are active
simultaneously, there is alarm 55 in LCD
panel when P13.23 FWD/REV conflict
supervision=1.
3 CS1 is inactivated which caused the
direction to start changing (FWD to REV)
because CS2 is still active, and alarm 55
should be disappeared in a while time.
4 CS2 inactivates and the frequency fed to
the motor drops to 0.
5 CS2 actives again causing the motor to
accelerate (REV) towards the set
frequency.
6 CS2 inactivates and the frequency fed to
the motor drops to 0.
7 CS1 actives and the motor accelerates
(FWD) towards the set frequency.
Table 45.
Explanations
8 Run enable signal is set to FALSE, which drops
the frequency to 0.The run enable signal is
configured with par. 5.7.
9 Run enable signal is set to TRUE, which causes
the frequency to rise towards the set frequency
because CS1 is still active.
10 Keypad stop button is pressed and the
frequency fed to the motor drops to 0.(This
signal only works if Par. 2.7 [Keypad stop
button] = 1)
11 The drive starts through pushing the Start
button on the keypad.
12 The keypad stop button is pushed again to stop
the drive. (This signal only works if Par. 2.7
[Keypad stop button] = 1)
13 The attempt to start the drive through pushing
the Start button is not successful because CS1
is inactive.
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