Siemens SED2 Commissioning Manual

40/80
Siemens Building Technologies Commissioning Guide CM1G5192en
HVAC Products 8 Additional functions 26.02.2003
Par. no. Value Parameter function Function selection
P2200 1 Enable PID controller Enable PID loop
P2201 60 Fixed PID setpoint Fixed setpoint as a percentage of sensor range
P2253 2224 PID setpoint PID setpoint source
P2264 755.0 PID feedback Sets PID feedback source to AI-1
P2274 0 PID derivative action time Derivative action time
P2280 1.5
PID proportional band
Proportional band
P2285 20
PID integral action time
Integral action time
P2306 0 PID acting direction Direct acting loop
P2390 20
Hibernation frequency
Hibernation setpoint [%]
P2391 60
Hibernation timer
Hibernation timer in seconds
P2392 -5
Restart PID controller deviation
Restart – PID error in %
r2262 60
Filtered PID setpoint
Display actual setpoint in C
r2272 64
PID scaled feedback
Display actual condenser temperature
r2273 -1.2 PID error Display actual PID error in %
r2294 70 PID output Display actual VSD output in %
8 Additional functions
8.1 Belt failure detection without sensor
Carry out quick commissioning and modify the parameters for normal operation, then proceed as follows:
Frequency /
torque curve
Torque [Nm]
Frequency [Hz]
Threshold frequency 1 Threshold frequency 3
Threshold frequency 2
P2182 P2184
P2183
P2189
Upper torque threshold 3
P2190 unterer
Lower torque threshold 3
P2187
Upper torque threshold 2
P2188
Lower torque threshold 2
P2185
Upper torque threshold 1
P2186
Lower torque threshold 1
5
1
9
2D
0
1
e
n
8.1.1 Parameter setting
Start with quick commissioning according to application example 1
Par. no. Value Parameter function Function selection
P0003 3 User access level Expert access
P2181 6 Belt failure detection mode Trip on high / low torque / speed
P2182 14 Hz Belt threshold 1
Sets a frequency threshold F1 for comparing actual torque to
torque the envelope for belt failure detection. The frequency
torque envelope is defined by 9 parameters - 3 are frequency
parameters (P2182 - P2184) and the other 6 define the low
and high torque limits (P2185 - P2190) for each frequency

Siemens SED2 Specifications

General

Brand	Siemens
Model	SED2
Category	DC Drives
Language	English