Operating Instructions

10
Training Exercises
Exercise 5
40
Siemens Industry, Inc. 125-1007 Rev.BA
2014-08-14
Exercise 5
This exercise builds off of Exercise 4. Additional features of the Electronic Bypass will
be used. The standard keypad should be used during this exercise.
Startup Scenario:
The customer has decided to change the sequence, the damper and end-switch will be
wired directly to the drive, so that the interlock application can be used on the
electronic bypass. An additional safety will be wired to the drive.
Key information:
Damper Control
 Relay Output
End Switch Feedback
 Digital Input
Start/Stop
 Digital Input
Safeties
 Low Temp Detector
 Smoke Sensor
 Vibration Sensor
Speed Reference
 4 to 20 mA
Electronic Bypass
View Operation
 Auto (via I/O control)
 Bypass
Exercise 6
This exercise requires the BT300 Demonstration Panel to be factory-reset and
recommissioned. Additional features of the Electronic Bypass will be used. The
standard keypad should be used during this exercise.
Startup Scenario:
The unit is controlling a pump on a cooling tower. This is an electronic bypass
installation. A BMS will provide a digital signal for start/stop reference, a digital signal
for essential services, and a 0 to 10 Vdc signal for speed reference. Two safeties will
be wired to the drive.
Key information:
Essential Services:
 Digital Input