1.9 Options
— Holding brake
Built-in holding brake.
Motor length increases by the holding brake.
— Radial shaft-sealing rings
A radial shaft-sealing ring can be supplied at extra charge to seal against oil mist
and oil spray. This increases the protection rating of the shaft bushing to IP67.
— Keyway
The motors are available with keyway and key inserted according to DIN6885
The shaft is balanced with a short (half) key.
— EnDat, BISS, ComCoder, SFD
Another feedback system is mounted instead of the resolver. The motor length
can increase by the alternative feedback.
With exception of the radial shaft seal the options cannot be retrofitted. Options such as radial shaft
seal, holding brake, EnDat or Comcoder can lead to a reduction of rated data.
1.10 Selection criteria
The three-phase servomotors are designed to operate with SERVOSTAR servo amplifiers. Toget
-
her, both units form a closed speed or torque control loop.
The most important selection criteria are:
— Standstill torque M
0
[Nm]
— Rated speed n
n
[min
-1
]
— Moment of inertia of motor and load J [kgcm²]
— Effective torque (calculated) M
rms
[Nm]
When calculating the motors and servo amplifiers which are required, take account of the static load
and the dynamic load (acceleration/braking). Collected formulae and examples of the calculations
are available from our applications department.
Servomotors AKM 11
Kollmorgen 05/2006 General
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