Siemens LME7 Series Basic Documentation

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Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 27 PWM settings 29.11.2011
27.5 Overview of PWM fan parameters
(value range refers to PME71.901)
Parameter- Designation Value range Step size *) Conditions
number Min. Max.
403.00 Fan speed: Ignition load speed (P0) 800 9000 10 rpm Factory setting 3000 rpm
403.01 Fan speed: Low-fire speed (P1) 800 9000 10 rpm Factory setting 1200 rpm
403.02 Fan speed: High-fire speed (P2) 800 9000 10 rpm Factory setting 5700 rpm
503.00
No-flame speeds PWM fan: Standby
speed
0 9000 10 rpm 0 up to max. speed
503.01 No-flame speeds PWM fan: Purge speed 800 9000 10 rpm < max. speed
516.00 Limit speed ignition load P0: Min. limit 800 9000 10 rpm P1min < P0min < P1max
516.01 Limit speed ignition load P0: Max. limit 800 9000 10 rpm P0max < P1max
517.00 Limit speed low-fire P1: Min. limit 800 9000 10 rpm ---
517.01 Limit speed low-fire P1: Max. limit 800 9000 10 rpm P1max < P2min
518.00 Limit speed high-fire P2: Min. limit 800 9000 10 rpm P2min > P1max
518.01 Limit speed high-fire P2: Max. limit 800 9000 10 rpm P2max > P2 min
519 Max. speed fan 3000 9000 10 rpm Factory setting 5830 rpm
522 Ramp-up low-fire  high-fire 2.058 74.970 0.294 s Factory setting approx. 15 s
523 Ramp-down high-fire  low-fire 2.058 74.970 0.294 s Factory setting approx. 15 s
559
PWM mode
0 = open loop control
1 = PID control
2 = safety mode (PWM limits)
0 2 1 Factory setting 1 (control)
560
Mode: Pneumatic ratio control
0 = OFF
1 = PWM fan
2 = air damper actuator
0 2 1 Factory setting 1 (PWM fan)
644 Number of pulses per revolution 2 5 1 Factory setting 3 (Hall pulses/rev)
646 Settling time for speed assessment 1.029 2.058 0.147 s Factory setting 2.1 seconds
650.00 Speed tolerance band: Speed shutdown 1 5 1% Factory setting 1%
650.01
Speed tolerance band quick speed
shutdown
1 10 1% Factory setting 3%
658.00 PWM values fan: Start PWM 1 100 1% Factory setting 25%
658.01 PWM values fan: Min. PWM 0 20 1% Factory setting 0%
658.02 PWM values fan: Max. PWM 80 100 1% Factory setting 100%
659.00 Ramp time of fan: Min. low-fire to high-fire 0 74.970 0.294 s Factory setting 2.058 seconds
659.01
Ramp time of fan: Max. low-fire to high-
fire
0 74.970 0.294 s Factory setting 74.970 seconds
659.02 Ramp time of fan: Min. high-fire to low-fire 0 74.970 0.294 s Factory setting 2.058 seconds
659.03
Ramp time of fan: Max. high-fire to low-
fire
0 74.970 0.294 s Factory setting 74.970 seconds
660 Tolerance time speed deviation 0 37.485 0.147 s Factory setting 4.998 seconds
674 Neutral band (permitted control offset) 0 255 1 rpm Factory setting 40 rpm
675.00 PWM: Min. PWM with prepurging, SEC 0 100 1% Factory setting 86%
675.01 PWM: Max. PWM with ignition load, SEC 0 100 1% Factory setting 34%
676 Gain factor speed control 0 255 1 Factory setting 112

Siemens LME7 Series Specifications

General

Brand	Siemens
Model	LME7 Series
Category	Controller
Language	English