11.4.7 Holding brake option
All motors with DSL and SFD3 feedback option are optionally available with a holding brake.
Retrofitting a brake is not possible. A spring applied brake (24V DC) is integrated into the
motors. When this brake is de-energized it blocks the rotor.
If there is a suspended load (vertical axes), the motor's holding brake is
released, and, at the same time, the servo drive does not produce any out-
put, the load may fall down!
Risk of injury for the personnel operating the machine. Functional safety
in case of hanging loads (vertical axes) can be ensured only by using an
additional, external, mechanical brake.
The holding brakes are designed as standstill brakes and are not suited for repeated oper-
ational braking. In the case of frequent, operational braking, premature wear and failure of the
holding brake is to be expected.
The motor length increases when a holding brake is mounted.
The holding brake can be controlled directly by the drive (no functional safety !), the winding
is suppressed in the drive — additional circuitry is not required (see instructions manual of
the used drive). If the holding brake is not controlled directly by the drive, an additional wiring
(e.g. varistor) is required. Consult our support department.
11.4.8 Connection options
The hybrid cable combines power and feedback signals and is connected inside the motor.
The cable includes a tube for pressure compensation:
Codes K and T
Cable prepared for AKD-B/P/T/M. Feedback connector is assembled,
Power lines and shield is prepared for connecting the X9 connector of the
drive (see drive installation manual).
Depending on the application requirements you can select either standard (washdown)
cabling or hygienic (food) cabling.
Non food applications can be connected with washdown hybrid cable (K).
Food applications require a special solution with a tube covered hybrid cable (T).
Compatibility of the cable to cleaning solutions used in the application should be evaluated
before subjecting the cable to long-term exposure to chemicals. Long-term exposure of the
motor cable to chemicals not compatible with the motor cable could result in contamination
of product, motor failure, and electrocution hazard due to the exposure of high voltage wiring
inside the motor cable.
Code Type
Cross Section
Min.
Bending
Radius
Remarks
K
Hybrid cable
(4x2.5+2x(2x1.0) + t*)
(4x4.0+2x(2x1.0) +t*)
150 mm
165 mm
SFD Gen2: 4 power lines, 4 sig-
nal lines, no brake lines
DSL/SFD3: 4 power lines, 2 sig-
nal lines, 2 brake lines
T
Tube covered
hybrid cable
(4x2.5+2x(2x1.0) + t*)
(4x4.0+2x(2x1.0) +t*)
150 mm
165 mm
* inside tube for pressure compensation
AKMH Installation | Table of Contents
Kollmorgen | March 2014
41
Summary of Contents for AKMH2
Page 62: ...18 4 Dimensions AKMH3 Ax flanges AKMH Installation Table of Contents 62 Kollmorgen March 2014...
Page 64: ...18 7 Dimensions AKMH4 Ax flanges AKMH Installation Table of Contents 64 Kollmorgen March 2014...
Page 66: ...18 10 Dimensions AKMH5 Ax flanges AKMH Installation Table of Contents 66 Kollmorgen March 2014...
Page 68: ...18 13 Dimensions AKMH6 Ax flanges AKMH Installation Table of Contents 68 Kollmorgen March 2014...
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