Specifications

46 ζ ZETA6104 Installation Guide
Setting Motor Current – Non-Compumotor Motors
To set motor current for a non-Compumotor motor, refer to the formulas below that
correspond to your motor (4-lead, 6-lead, 8-lead) and use the current settings shown on page 5
to set the motor's current.
WARNING
Do not connect or disconnect the motor with the power on. Doing so will damage the contacts
of the motor connector and may cause personal injury.
4-Lead Motors If you use a 4-lead motor, the manufacturer's current specification will translate directly to the
values shown for current in the DIP switch table on page 5.
6-Lead Motors If you use a 6-lead motor, and the manufacturer specifies the motor current as a bipolar rating,
you can use the DIP switch table’s current settings directly (no conversion) to set motor
current.
If the manufacturer specifies the motor current as a unipolar rating, use the following formula
to convert the unipolar current rating to the correct bipolar rating:
Unipolar Current ∗ 0.707 = Bipolar Current
After you make the conversion, use the values shown for current in the DIP switch table to set
the motor current.
8-Lead Motors Manufacturers generally use either a unipolar rating or a bipolar rating for motor current in 8-
lead motors.
Unipolar Rating: If the manufacturer specifies the motor current as a unipolar rating:
• Use the following formula to convert the unipolar current rating to the correct bipolar
rating:
Unipolar Current ∗ 0.707 = Bipolar Current
• If you wire the motor in series, use the DIP switch table’s current settings and the
converted value to set the motor current.
• If you wire the motor in parallel, you must double the converted value and use the
DIP switch table’s current settings to set the motor current.
Bipolar Rating: If the manufacturer specifies the motor current as a bipolar series rating:
• If you wire the motor in series, use the DIP switch table’s current settings directly.
• If you wire the motor in parallel, you must double the manufacturer's rating and then
use the DIP switch table’s current settings to set the motor current.
If you have any questions about setting motor current, consult your local Automation
Technology Center (ATC) or distributor, or refer to the numbers listed under Technical
Assistance on the inside front cover of this document.