Holding Brake Option; Connection Options - Kollmorgen AKMH Series Instruction Manual

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
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
K
T
* inside tube for pressure compensation
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).
Cross Section
Hybrid cable (4x2.5+2x(2x1.0) + t*)
(4x4.0+2x(2x1.0) +t*)
Tube covered (4x2.5+2x(2x1.0) + t*)
(4x4.0+2x(2x1.0) +t*)
hybrid cable
AKMH Installation | Table of Contents
Min. Remarks
Bending
Radius
150 mm SFD Gen2: 4 power lines, 4 sig-
165 mm nal lines, no brake lines
150 mm DSL/SFD3: 4 power lines, 2 sig-
165 mm nal lines, 2 brake lines
Kollmorgen | March 2014 41