Silent Mode - JVL MAC050 User Manual

2.17
2.17.1 Introduction
For applications where it's required that the motor is very silent the "Silent Mode" can
be used.
Normally a MAC motor can be slightly noisy because the controller that controls the mo-
tor current is setup to a very responsive and dynamic behaviour in order to control the
motor movement very fast and precise.
The drawback of this is that the motor will generate a certain extend of audible noise.
By activating the Silent mode, the current controller is simply set to a less responsive and
dynamic behaviour. Also the efficiency and peak torque is lowered a bit especially at high-
er velocities.
The motor will therefore react in a slower manner which is often not a problem if the
feature is enabled only when the motor is at a standstill.
The feature is available from firmware release 2.21.
!
2.17.2 How to enable Silent Mode
The internal register 246 (bits 7:4) is used to enable and adjust the degree of noise re-
duction.
Please note that the other bits in this 32 bit register are used for other purposes so avoid
overwriting these since this can cause unexpected behaviour of the motor.
The Silent Mode setup is saved similar to other registers by using "Save in Motor"
Register 246 - SETUP_BITS2
31 30 29 28 27 26 25 24 23 22
Bit 31 - 8 and Bit 3 - 0: Is used for other purposes - do not overwrite these bits
At the moment its not possible to control the silent mode from the MacTalk.
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80

Silent mode

Please notice that only following motor types that support the Silent mode
MAC402, MAC1000, MAC1200, MAC1500 to MAC4500.
Following are NOT supported: MAC050-141 Gen.1., MAC400 and MAC800
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit 7 - 4: Silence degree
Value (hex)
0 (default)
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
JVL A/S - User Manual - Integrated Servo Motors MAC050 - 4500
Function / Influence
Silence mode disabled - normal motor function
Silence mode enabled level 1 - Minimum noise reduction
Silence mode enabled level 2
Silence mode enabled level 3
Silence mode enabled level 4
Silence mode enabled level 5
Silence mode enabled level 6
Silence mode enabled level 7
Silence mode enabled level 8
Silence mode enabled level 9
Silence mode enabled level 10
Silence mode enabled level 11
Silence mode enabled level 12
Silence mode enabled level 13
Silence mode enabled level 14
Silence mode enabled level 15 - Maximum noise reduction
Only MAC402 to MAC4500
TT1600-01GB