Operating Instructions

Chapter 4 - Parameters and Menu Structure
Parameters (M3)
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Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Smart Infrastructure
2019-05-29
Logic
Selection Name
Note
2
CS1: Forward (edge)
CS2: Backward (edge)
Used to exclude the possibility of an unintentional start. The Start/Stop contact must be
opened before the motor can be restarted.
Figure 14: I/O A Start/Stop logic = 2.
Table 23: Legend to I/O A Start/Stop logic = 2.
1
Control signal (CS) 1 activates causing the
output frequency to rise. The motor runs
forward.
7
CS1 activates and the motor accelerates
(FWD) towards the set frequency
2
CS2 activates, but has no effect on the
output frequency because the first selected
direction has the highest priority.
8
Run enable signal is set to FALSE, which
drops the frequency to 0. The run enable
signal is configured with RunEnable
(P3.5.1.11).
3
CS1 is inactivated which causes the
direction to start changing (FWD to REV)
because CS2 is still active.
9
Run enable signal is set to TRUE, which,
unlike if value 0 is selected for this
parameter, has no effect because rising
edge is required to start even if CS1 is
active.
4
CS2 inactivates and the frequency fed to
the motor drops to 0.
10
Keypad stop button is pressed and the
frequency fed to the motor drops to 0. (This
signal only works if KeypadStopButton
[P3.2.3] = Yes).
5
CS2 activates again causing the motor to
accelerate (REV) towards the set frequency.
11
CS1 is opened and closed again which
causes the motor to start.
6
CS2 inactivates and the frequency fed to
the motor drops to 0.
12
CS1 inactivates and the frequency fed to
the motor drops to 0.