Belt Failure Detection With Sensor; Parameter Setting - Siemens sed2 Commissioning Manual

Par. no. Value Parameter function
P2183 30 Hz Belt threshold 2
P2184 51 Hz Belt threshold 3
r0031 ........... Adjust with the
r0031 ........... Adjust with the
Adjust with the
r0031 ...........
P2185 ≥+ 25 % Upper torque threshold
frequency 1
P2186 ≥- 25 % Lower torque threshold
frequency 1
P2187 ≥+ 25 % Upper torque threshold
frequency 2
P2188 ≥- 25 % Lower torque threshold
frequency 2
P2189 ≥+ 25 % Upper torque threshold
frequency 3
P2190 ≥- 25 % Lower torque threshold
frequency 3
P2192 Suggest Time delay for belt failure
65 s

8.2 Belt failure detection with sensor

Carry out quick commissioning and modify the parameters for normal operation, then proceed as follows:

8.2.1 Parameter setting

Start with quick commissioning according to application example 1
Par. no. Value
P0003 3
P0400 3
P0409 Pulses / s
at rated freq.
P2181 6
P2191 3
P2192 10 s
Siemens Building Technologies
HVAC Products
button
button
button
SED2
Parameter function
User access level
Encoder type
Speed (rpm) / 60 s
Belt failure detection mode
Belt failure speed tolerance
Time delay for belt failure
Commissioning Guide
8 Additional functions
Function selection
Sets a threshold F2 for comparing actual torque to torque
within the envelope for belt failure detection
Sets a threshold F3 for comparing actual torque to torque
within the envelope for belt failure detection
Read the torque at 15 Hz and note it here: ......................
Read the torque at 30 Hz and note it here: ......................
Read the torque at 45 Hz and note it here: ......................
Add 25 % to the torque reading taken at 14 Hz
Subtract 25 % of the torque reading taken at 14 Hz
Add 25 % to the torque reading taken at 30 Hz
Subtract 25 % of the torque reading taken at 30 Hz
Add 25 % to the torque reading taken at 50 Hz
Subtract 25 % of the torque reading taken at 50 Hz
Defines a delay before warning / trip becomes active. It is
used to eliminate events caused by transient conditions. It is
used for both methods of fault detection
Motor
Sensor
Function selection
Expert access
External encoder (the encoder can only be connected
to digital input 5, terminals 9 and 16)
E.g. 2820 / 60 = 47
Trip on high / low torque / speed
Fan
41/80
CM1G5192en
26.02.2003