Operating Instructions

Chapter 4 - Parameters and Menu Structure
Parameters (M3)
93 | 187
Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Smart Infrastructure
2019-05-29
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.12.1.4
ProcessUnitSel.
%
F
%
1036
See Table Process Unit Selection .
P3.12.1.5
ProcessUnitMin
Varies
Varies
Varies
0
1033
Defines the minimum of the range
for the process unit.
P3.12.1.6
ProcessUnitMax
Varies
Varies
Varies
100
1034
Defines the maximum of the range
for the process unit.
P3.12.1.7
ProcessUnitDeci.
0
4
2
1035
Defines the number of positions
after the decimal place that will
display.
P3.12.1.8
Error Inversion
Reverse
Acting
Direct Acting
Reverse
Acting
340
Defines the action of the PID loop.
0 = Reverse Acting (Fdbk < Stpt
= > Increase PID Output)
1 = Direct Acting (Fdbk < Stpt
= > Decrease PID Output)
P3.12.1.9
Dead Band
Varies
Varies
Varies
0
1056
Defines the dead band area
around the setpoint in process
units. The PID output is locked if
the feedback stays within the
dead band area for the Dead
Band Delay (P3.12.1.10)
P3.12.1.10
Dead Band Delay
s
0
320
0
1057
Defines the time for dead band.
Table 56: Process Units Selection.
Unit
Unit
Unit
Unit
0
%
10
kg/h
20
kW
30
ft3/h
1
1/min
11
m3/s
21
C
31
in wg
2
rpm
12
m3/min
22
gal/s
32
ft wg
3
ppm
13
m3/h
23
gal/min
33
PSI
4
pps
14
m/s
24
gal/h
34
lb/in2
5
l/2
15
mbar
25
lb/s
35
hp
6
l/min
16
bar
26
lb/min
36
F
7
l/h
17
Pa
27
lb/h
8
kg/s
18
kPa
28
ft3/s
9
kg/min
19
mVS
29
ft3/min
Setpoints (M3.12.2)
Table 57: Setpoints.
Structure
Parameter
Unit
Min
Max
Default
ID
Description
P3.12.2.1
Keypad SP 1
Varies
Varies
Varies
0
167
Defines the primary keypad
setpoint if selected by SP1
Source (P3.12.2.4).
P3.12.2.2
Keypad SP 2
Varies
Varies
Varies
0
168
Defines the secondary keypad
setpoint if selected by SP1
Source (P3.12.2.4).
P3.12.2.3
Ramp Time
s
0
300
0
1068
Defines the rising and falling ramp
times for setpoint changes.