Operating Instructions

10
Training Exercises
Exercise 2
38
Siemens Industry, Inc. 125-1007 Rev.BA
2014-08-14
Exercise 2
Exercise 1 settings must be in place for this exercise to properly work. The NET tool
should be used to complete these steps. Control will be changed from keypad to I/O
control. The motor is mounted in cool area and pre-heat of the motor windings is
required for proper operation.
Startup Scenario:
A building management system will now be connected to the unit in the previous
exercise. The BMS will provide a digital signal for start/stop forward, a digital signal for
start/stop in reverse, digital signal for pre-heat mode, and a 0 to 10 Vdc signal for
speed reference. The damper and end-switch will be wired directly to the drive for
interlock control.
Key information:
Start/Stop
 Use 2 digital inputs: Forward, Reverse
 Both with rising edge
Motor Preheat Function
 Activated via Digital Input 4
 Use 0.2A current
Speed Reference
 AI1
 2 to 10V
Magnetize Motor
 On Start for 3s
 0.37A DC current
Enable Fan Interlock Function
 Damper activation on Relay Output 3
 End switch feedback on Digital Input 6
 Run Interlock, NOT Interlock for multi-pump
When testing the Interlock function, the Start/Stop will be enabled. Relay output will
energize. A manual contact closure on digital input will be required since the physical
devices are not present.
When preheat is On, the motor will not spin.
Exercise 3
This exercise requires the BT300 Demonstration Panel to be factory-reset and
recommissioned. The standard keypad should be used during this exercise. The
system will be using the drives internal PID controller.
Startup Scenario: