Danaher Motion CP303, Installation Manual

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Kollmorgen Mounting
SERVO STAR
®
SP3 Power Block 11
Common mode currents occur from noise spikes created by the PWM switching frequency of the
drive. The use of a ferrite or iron-powder core toroid, as shown in the figure above, places
common mode impedance in the line between the motor and the drive. The use of a common
mode choke on the motor leads may increase signal integrity of encoder outputs and associated
I/O signals. The following is a list of toroidal and ferrite cores that can be used to make common
mode chokes:
Toroidal Core Recommendations
Manufacturer Mfg. Part # Size
Micrometals T400-26D OD 4in (102mm) ID 2.25in (57.2mm) HT 1.3in (33mm)
Micrometals ST102-267 OD 1.025 in (26mm) ID 0.6 in (15.2mm) HT 0.475 in (12.1mm)
Micrometals ST150-275B OD 1.52 in (38.6mm) ID 0.835 in (21.2mm) HT 0.825 in (21mm)
Micrometals ST200-275B OD 2.01 in (51.1mm) ID 1.24 in (31.5mm) HT 1.025 in (26mm)
Magnetics 77930-A7 OD 1.09 in (27.7mm) ID 0.555in (14.1mm) HT 0.472in (11.99mm)
Fair-Rite 2643803802 OD 2.4in (61mm) ID 1.4in (35.55mm) HT 0.5in (12.7mm)
Pre-wound Common-Mode Chokes
Manufacturer Mfg. Part # Kollmorgen Part # Description
Schaffner RD7137-36-0m5 A-96843-005 500 µ
H 3 phase common mode choke.
36 amps continuous.
Schaffner RD8137-64-0m5 A-96843-010 500 µ
H 3 phase common mode choke.
64 amps continuous.
I/O Filtering
I/O filtering may be desired, depending on system installation, application, and integration with
other equipment. It may be necessary to place ferrite cores on I/O lines to avoid unwanted signals
entering and disturbing the drive system or other associated equipment. The following chart lists
some ferrite parts that may be used for I/O filtering and noise attenuation. These parts are ideal
for providing in-line common mode impedance for I/O lines (Fair-Rite Products Corporation also
has a varied selection, which suits most applications).
I/O Filter Recommendations
Manufacturer Manufacturer’s Part # Kollmorgen Part # Description
Ferrishield SS33B2032 A-96770-003 Clamp on core
Ferrishield SS33B2036 A-96769-005 Clamp on core
Ferrishield FA28B2480 A-96771-003 Clamp on core
flat cable clamp
Ferrishield SA28B4340 A-96772-009 Clamp on core
flat cable clamp
* Fair-Rite 2643167251
* This core must be used with the drives for CE compliance. It should be applied
to the 24V input power lines and the Remote Enable lines (7&8 on C3 connector)
with approximately 3 turns through the core.
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