Basic Documentation

Startup Procedure and Checklist
Document Number 125-1006
Rev. FA, June 18, 2019
BT300 Variable Frequency Drives
Step
Check
Description
1
Verify that all three input phases are connected to the input fuse block (or circuit breaker depending
upon model) and that the motor leads are connected to the output terminals of the overload relay
only.
Note : The M1 (Bypass) contactor and the M2 (Output) contactor outputs are connected together at the factory.
2
Verify that all factory connections within the bypass are tight as factory connections can loosen
during shipment.
3
Record all connections to the drive in the Slot A&B Terminals sheet of this document.
4
Record all connections to the bypass diagnostics board in the Diag Terminals sheet of this
document.
5
Before applying power, verify the following:
- The DRIVE/OFF/BYPASS switch is in the OFF position.
- The DRIVE TEST switch (if installed) is in the OFF position.
6
Dial in the current limit on the overload in accordance with the connected motor.
7
Apply power to the drive with c-bypass option via the main disconnect. Verify that all three phases
are present and that the input voltage is correct fo the system.
8
Place the
DRIVE TEST
switch (if installed) to the
ON
position.
9
The keypad should illuminate and Startup Wizard of the drive should be active. Complete the
Startup Wizard. When prompted for Bypass Wizard, answer YES .
Note: This should be activated when the unit is first powered up. If not , then it is recommend to reset the drive
to factory default to return to a good known starting configuration. This can be completed by navigating to the
following in the menu structure:
User Settings (6)… Parameter Backup (6.5)… Restore Factory Defaults (6.5.1)... Activate
Refer to the Operator's Manual (DPD01149) for detailed information about the Startup Wizard.
10
During the execution of the bypass wizard, select
Conventional
.
Refer to the Bypass Operator's Manual (DPD01391) for detailed information about the Bypass Wizard.
11
Place the
DRIVE/OFF/BYPASS
switch in the
DRIVE
position.
12
Place the
DRIVE TEST
switch (if installed) to the
OFF
position.
13
Press the
HAND/AUTO
button on the drive. Select
Hand
and press the
OK
button. With
Activate
highlighted, press the OK button.
At the drives keypad, enter a setpoint greater than 5 hertz, and then press the green I button to start
the motor. Verify the motor rotation is correct for the application. Press the red O button to stop the
motor.
14
Place the
DRIVE/OFF/BYPASS
switch to the
OFF
position. The drive keypad should turn off if a
Drive Test switch is installed (3 contactor versions).
15
"Bump" the
DRIVE/OFF/BYPASS
switch to the
BYPASS
position and quickly back to the
OFF
position. Verify the motor rotation is correct for the application.
16
If motor rotation was incorrect in either step 11 or 13, then leave the
DRIVE/OFF/BYPASS
switch in
the OFF position. Remove input voltage from the assembly. Wait 5 minutes to allow for the drive's
DC Bus to discharge. Make the required changes as listed in the Bypass Motor Rotation tab of this
document. Repeat steps 11 through 13 to verify proper rotation again.
17
Place the
DRIVE/OFF/BYPASS
switch to the
DRIVE
position.
18
Complete any other required wizards found in the Quick Setup (1) menu.
Refer to the Operator's Manual (DPD01149) for detailed information about the wizards.
19
Complete any other application specific settings for the site as required.
20
The automatic reset is configured for 30 second intervals and 10 reset attempts.
If this is not acceptable, configure the automatic reset settings found in Parameters (3)
…Automatic Reset (3.10) menu for desired settings.
Startup Procedure for Conventional Bypass Options (BTC…)
Review the Preparing for BT300 VFD Start (tab 2) section in this document.
Place a "X" in the check column when completed. Place a "n/a" if not used.
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Siemens Industry, Inc.