237/245
Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 27 PWM settings 29.11.2011
Parameter- Designation Value range Step size *) Conditions
number
Min. Max.
677 Integral action time speed control 0 37.485 0.147 s Factory setting 0.441 s
678 Derivative action time speed control 0 37.485 0.147 s Factory setting 0 seconds
679.00
Time constant PT1 speed control: Lower
speed range high-fire to low-fire
0 37.485 0.147 s Factory setting 6.027 seconds
679.01
Time constant PT1 speed control:
Medium speed range high-fire to low-fire
0 37.485 0.147 s Factory setting 6.027 seconds
679.02
Time constant PT1 speed control: Upper
speed range high-fire to low-fire
0 37.485 0.147 s Factory setting 6.027 seconds
679.03
Time constant PT1 speed control: Entire
speed range low-fire to high-fire
0 37.485 0.147 s Factory setting 6.027 seconds
680.00
Speed range for PT1 time constant:
Threshold upper speed range
800 9000 10 rpm Factory setting 4000 rpm
680.01
Speed range for PT1 time constant:
Threshold lower speed range
800 9000 10 rpm Factory setting 2000 rpm
920 Current PWM signal fan 0 100 1% Service parameter
*) Step size of speeds when making the settings via PC software ACS410: 1 rpm