Product manual

Danaher Motion 05/2008 Appendix A – DC Power Supply Design
S200-VTS Product Manual 117
A.2.1 Control Supply (J1-1 to J1-2)
The voltage range of the control supply is + 10 to + 90 V. This supply can be either unregulated
or regulated. However, it must be isolated from the power line as its negative terminal is
typically earthed for safety and commoned with main power negative terminal.
For reliable starting, the control supply should have a peak power rating of at least 20 W. A
typical continuous control power drawn by an S200 DC drive is 2 to 8 W. A single, relatively low
power, low voltage supply (+ 12 V or + 24 V) can provide control power and I/O power for
multiple drives.
A.3 Multi-Axis Considerations
In multi-axis applications, the drive’s power terminals can either be wired separately to the
power supplies or paralleled locally (daisy-chained) and then wired to the power supplies. In
the latter case, increase the wire size to handle the higher current.
NOTE
Locally paralleling the main power terminals of multiple drives
parallels the internal bus capacitors of the drives (200 µf per drive).
This allows the PWM currents of the drives to spread out, thereby
lowering the temperature of the capacitor in the hottest drive.