Hiwin D2

D2 Drive User Guide v1.8 E. EMC Solution
HIWIN Mikrosystem Corp. 292
E.1. Common-mode motor filter
A common-mode motor filter can be considered when following situations occur.
(1) For the drive with the 17-bit encoder, the encoder feedback is disturbed and the error
of “serial encoder communication error” occurs when the drive is enabled.
(2) Reduce the common-mode noise at the drive’s output.
The part number of HIWIN self-made common-mode motor filter is MC-CM-S. It is suitable for
D2-series drives with the power less than 2 KW (inclusive). The specification is given in the
following table. When the external common-mode motor filter is used, the effect of common-
mode inductor should be considered to improve the performance of motor control.
Table E-1
Item
Specification
Input
Maximum voltage
373 Vdc
Maximum current
11 A
rms
Output
Maximum voltage
373 Vdc
Maximum current
11 A
rms
Peak current
*
/Maximum duration of peak current
33 A
rms
/ 1 second
Ambient operating temperature

0 to 50°C
Common-mode inductor (line)
1,100
μ
H (nominal)
*The maximum input/output peak current can be maintained for 1 second from the start.

If the drive is operated below the maximum temperature, no cooling fan is required.
However, if the ambient temperature exceeds 50°C, an external fan should be used for
cooling. The fan should have a flow rate of at least 110 cubic feet (CFM).
Fig. E-1