CM2N3204E / 05.2001 Siemens Building Technologies
16/20 Landis & Staefa Division
Data point values and measured values can be called up under certain data point
numbers.
The controller is supplied with factory set values (bold print). These factory settings are
selected so that the controller suits a majority of plants.
Each of them can be changed, if required. The factory set data are stored in non-volatile
memory.
No. Description Range Factory setting
1 B9 Frost temperature −50.0...+150.0 °C (Read value)
2 Z Input variable
−50.0...+150.0 °C/ (Read value)
0...2000 ppm
3 F91 Common fault relay OFF/On (Read value)
4 E7 Control input 1
1)
OFF/On (Read value)
5 E8 Control input 2
1)
OFF/On (Read value)
6 Y30 Minimum limitation 0...100 %
0 %
7 Fan speed 1/2 1
8 Setpoint pair (Comfort/Economy) Co/Ec Co
9 Room temperature limit heating 0...30 °C 15 °C
10 Room temperature limit cooling 20...50 °C 30 °C
11 Minimum operating time 00.00...12.00 hh.mm 00.30 hh.mm
12 Room temperature limit 10...50 °C 22 °C
13 Outside temperature limit 5...30 °C 12 °C
14 Delta 1...20 K 5 K
15 Minimum operating time 00.00...12.00 hh.mm 00.30 hh.mm
16 Frost alarm value 2...30 °C 5 °C
17 Standby controller 2...50 °C 25 °C
18 P-band frost protection controller 1...30 K 5 K
19 P-band standby controller 1...200 K 7 K
20 TN standby controller 00.00...10.00 mm.ss 03.00 mm.ss
21 Disabling of fan speed 2 acc.
to outside temperature B4
14)
−50...+150 °C −
−−
−15 °C
22 Delta for heating 1...10 K 4 K
23 Delta for cooling 1...10 K 3 K
24 KE room (cascade authority) 0...20.0 2.0
25 TN 00.00...40.00 mm.ss 08.00 mm.ss
26 P-band heating 1...200 K 20 K
27 TN heating
2)
00.00...10.00 mm.ss 02.30 mm.ss
28 P-band heat recovery 1...200 K 15 K
29 TN heat recovery
2)
00.00...10.00 mm.ss 02.00 mm.ss
30 P-band cooling 1...200 K 15 K
31 TN cooling
2)
00.00...10.00 mm.ss 02.00 mm.ss
32 Switching interval SA 1...100 % of Y20 20 %
33 Switching differential SD 1...100 % of Y20 10 %
34 Starting point 10...50 °C 25 °C
35 End point 10...50 °C 30 °C
36 Delta −10...+10 K 2 K
37 Starting point −30...+20 °C 5 °C
38 End point −30...+20 °C −20 °C
39 Delta −10...+10 K 1 K
40 E1 Fire/smoke A / b A
41 E2 Air flow supervision A / b A
42 E3 Overload pump/electric A / b A
43 E4 Overload chiller A / b A
44 E5 Overload fan A / b A
45 E6 AUX, freely available A / b A
46 B9 Frost alarm A / b A
47 Fan overrun time
3)
00.00...30.00 mm.ss 05.00 mm.ss
48 Min. heating circulator running time
11)
00.00...30.00 mm.ss 05.00 mm.ss
49 Heating circulator kick interval
10)
00.00...24.00 hh.mm/
Auto/Cont
Auto
50 Alarm delay air flow start
12)
00.00...10.00 mm.ss 00.20 mm.ss
51 Alarm delay air flow operation
12)
00.00...10.00 mm.ss 00.10 mm.ss
52 Alarm delay AUX
12)
00.00...05.00 mm.ss 00.00 mm.ss
53 E7, E8 control input on time 4) 00.00...12.00 hh.mm 00.00 hh.mm
54 Start-up time (damper fully closed)
5)
00.00...60.00 mm.ss 00.00 mm.ss
55 Preheating time 00.00...10.00 mm.ss 00.00 mm.ss
56 Power up start delay
13)
00.00...30.00 mm.ss 00.00 mm.ss
57 Setpoint −10...+30 °C 1 °C
58 P-band 1...100 K 10 K
59 TN
2)
00.00...04.00 mm.ss 01.00 mm.ss
Data point list for
normal operation
Current measured values
Limitation manipulated variable
Presettings
Unoccupied heating/cooling
mode
Night purging
Setpoints frost
protection/standby controller
Parameters frost
protection/standby
controller
Displacement ventilation
Control parameters room
temperature controller
Control parameters supply air
temperature controller
Switching points compressor
Summer compensation
Winter compensation
Alarm priorities
Time elements
HR anti-icing protection
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