Technical data

SED2 Operation & Maintenance Manual
80 Siemens Building Technologies, Inc.
Verifying Parameters
After the SED2 setup, verify the parameters by performing the following steps using the drive
keypad:
1. Press P.
2. r0000 should display. Use  and  to scroll to the appropriate parameter.
3. Press P to view the value of the parameter.
4. Use  and  to scroll to the appropriate value for the parameter.
5. Return to the display readout by pressing Fn and then P.
Using the SED2 with SBT (P1)
The SED2 controls the speed of fans, pumps, and other equipment. The following strategies
achieve the required control sequence. The field panel commands other tasks and functions
specific to the SED2.
Strategies for FLN (P1)
Monitoring – Several SED2 parameters are available for monitoring purposes. These include
both binary and analog data.
• FREQ OUTPUT (Point 3); the output frequency of the SED2 in Hz
• SPEED (Point 5); the SED2 output speed in RPM
• CURRENT (Point 6); the output current of the SED2 in amps
• TORQUE (Point 7); torque in percentage of nominal torque
• DC BUS VOLTS (Point 13); the DC bus voltage of the SED2
• RATED POWER (Point 16); the motors rated power
• OUTPUT VOLTS (Point 17); the output voltage applied to the motor
• ENABLED (Point 27); the SED2 is ready to run or disabled
• READY TO RUN (Point 28); the ready status of the SED2
• FREQ REFERENCE (Point 51); percent of the SED2 speed setting
• LAST FAULT (Point 90); last fault code that occurred
• 1st, 2nd & 3rd FAULT (Points 91 to 93); the three faults that occurred before the last fault
In addition to the above, ADDESS (Point 1), APPLICATION (Point 2), TIME (Point 20),
DAYNIGHT (Point 29), and OVRD and ERROR STATUS (Point 99) are supported by and comply
with FLN requirements.
Unbundle these points for monitoring or use them in various control strategies. For a detailed
description of these drive parameters, see other sections in this User Manual.