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For the transfer switch, incoming alternate power is to be connected to terminals located on the disconnecting means
AIS (transfer switch side).
- For 3 phases motor: identified AL1-AL2 and AL3.
Motor wires shall be connected to terminals identified by:
-T1-T2 and T3 located on main contactor (1R) for models FTA3100S and FTA3130S.
It is the responsibility of the installer to obtain connection information on the motor and to assure that the motor is
connected as per the motor manufacturer recommendations. Failure to do so may cause injuries to personnel,
damage the motor and/or the controller and subsequently void warranty on both items.
Reforming a VFD is the action of applying voltage to the VFD power path without running a motor. If the drive was
not connected to a voltage source for an extended period of time, the capacitors must be restored to their full
performance before the motor is started. If the Variable Frequency Drive have not been started for a year or more, a
reforming of the VFD needs to be performed. If this is not done, the VFD could be damage from running a motor.
VFD Reforming Required warning: If the FTA31xx detect that the VFD did not run for 365 consecutive days, the
“VFD Reforming Required” warning will be activated. While this warning is active, if a starting request occurs, the
FTA31xx will start using the bypass starting means even if the Mode Switch is in VFD mode. To remove this
warning, a reforming of the VFD must be completed. The “VFD Reforming Required” warning will activate the
“Pump Room” common alarm.
To perform a VFD Reforming:
1- Place the mode switch in “VFD” mode.
2- Enter a valid level 2 password.
3- Go to the “VFD Config” page.
- VFD Reforming start button:
This is to start the VFD Reforming.
- VFD Reforming Duration:
This is to adjust the VFD Reforming duration. It can be changed from 30m to 120m. According to
Schneider, if the VFD required a 1 hour reforming after a 1 year inactivity.
- VFD Reforming Timer:
Show the time remaining in minutes to a VFD Reforming while it is being performed. Only show time
if a VFD Reforming is being performed.
4- Press the “VFD Reforming” button. A textbox will pop up showing that the FTA31xx is performing a
Reforming of the VFD. A stop button can be pressed on this popup to stop the VFD Reforming.
5- The “VFD Reforming Timer” will display the time remaining for the VFD Reforming to be completed. Let the
“VFD Reforming Timer” expire.
The VFD Reforming will be interupted if:
- On the Popup display, the Stop button is pressed;
- A Starting request is activated;
- The Mode Switch is placed in Bypass mode;
When the VFD Reforming is interupted:
-The “VFD Reforming Required” warning is still active;
-The “VFD Reforming Timer” will be reset;
When the reforming is Completed:
-The “VFD Reforming Required” warning is disactivated.
Terminal Strip Descriptions
For full terminal strip description consult full manual.
