Operating Instructions

SED2 VFD Operation & Maintenance Manual
58 Siemens Building Technologies, Inc.
Parameter Settings for Belt Failure Detection without Sensor (Commissioning)
P2182 to P2184, Frequency limit value
The three frequency limit values F1, F2, and F3 determine a reasonable division across the
required torque area. Set the values desired in the manual mode using
and and read
and write down the corresponding torque values via parameter r0031.
Factory setting: 5, 30, 50 Hz.
P2181, Reaction of drive belt failure detection
P2181 sets the desired reaction of drive belt failure detection. Possible settings:
0=Belt failure detection disabled (factory setting).
1=Warn low torque/speed.
2=Warn high torque/speed.
3=Warn high/low torque/speed
4=Trip low torque/speed.
5=Trip high torque/speed.
6=Trip high/low torque/speed
Set P2181 (not to 0) before setting P2185 through P2190.
P2185 through P2190, Torque limit value
Set the torque limit value parameters as follows:
Add ±15% to the torque derived from the setting of the frequency limit values to define a
permissible tolerance band for the torque values.
Upper Limit Factory setting: 99999.0
Lower Limit Factory setting: 0.0.
P2192, Alarm delay
P2192 allows for setting an alarm delay (between 0 to 65 seconds) before a warning or error
message occurs. This parameter helps avoid false alarms caused by temporary transition
states. This delay can also be used for belt failure detection via sensor.
Factory setting: 10 seconds
In manual mode, vary the torque frequency in the selected range to check the function. Then,
change over to automatic control.