US Digital EC35 User manual

EC35 Assembly and Timing Instructions
Please Note: The EC35 is designed for one-time installation.
[e-mail] ▪www.usdigital.com
Local: 360.260.2468 ▪Sales: 800.736.0194
Support: 360.397.9999 ▪Fax: [phone]
1400 NE 136th Ave. ▪Vancouver, Washington ▪98684 ▪
USA
8.0
Page 1
Step 1:
Slip base and then centering tool over the shaft. Press
down on the centering tool to secure the base in an aligned
position on the mounting/motor surface and tighten the two
mounting screws. Remove the centering tool.
Step 2:
Energize the U phase motor winding with a positive DC
voltage (relative to V or W) to lock the motor into position.
Step 3:
Align assembled encoder over the motor shaft so that the
mark on the hub is oriented in the desired direction for
cable exit; this aligns the encoder’s index and U signals to
the motor’s U winding. Note: the index marking on the disk
is located ~180 deg. from the hub marking. Press the
encoder onto the shaft until it snaps down on the previously
mounted base. Press firmly near the cover through hole to
ensure that the encoder gap is set. Caution: Do not press
directly on the connector to avoid damaging the connector
shroud.
Step 4:
De-energize the U phase motor winding.

EC35 Assembly and Timing Instructions
Please Note: The EC35 is designed for one-time installation.
[e-mail] ▪www.usdigital.com
Local: 360.260.2468 ▪Sales: 800.736.0194
Support: 360.397.9999 ▪Fax: [phone]
1400 NE 136th Ave. ▪Vancouver, Washington ▪98684 ▪
USA
8.0
Page 2
Step 5:
Remove encoder spacer tool to free hubdisk. The encoder
is now properly gapped.
Step 6:
Attach the cable.
Step 7:
Dynamic Timing
Connect motor U winding and encoder U output to separate
channels of an oscilloscope. Use a second motor to back
drive the target motor and rotate the encoder until the two
signals are aligned with each other. Full 360° encoder
rotation allows any instance of the U winding to be located.
Step 8:
After the encoder is timed use the included tool to push the
external ring all the way down, employing caution as not to
rotate the encoder, until it bottoms out against the base.
This will lock the encoder into its final position. Remove
tool.

EC35 Assembly and Timing Instructions
Please Note: The EC35 is designed for one-time installation.
[e-mail] ▪www.usdigital.com
Local: 360.260.2468 ▪Sales: 800.736.0194
Support: 360.397.9999 ▪Fax: [phone]
1400 NE 136th Ave. ▪Vancouver, Washington ▪98684 ▪
USA
8.0
Page 3
Step 9(optional):
Apply the center-hole encoder cover to seal the opening.