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Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 27 PWM settings 29.11.2011
Parameter Meaning
Maximum limit speed ignition load P0:
Corresponds to the maximum speed for ignition load P0 in revolutions per minute (rpm) at which the
burner may still be securely ignited.
Prerequisite: P516.01 ≥ P0
516.01
Note:
Step size of speed when making the setting with operating unit AZL2...: 10 rpm
Step size of speed when making the setting with PC software ACS410: 1 rpm
Minimum limit speed low-fire P1:
Corresponds to the minimum speed for low-fire P1 in revolutions per minute (rpm) at which the
burner still operates safely in the low-fire range.
Prerequisite: P517.00 ≤ P1 fan speed
517.00
Note:
Step size of speed when making the setting with operating unit AZL2...: 10 rpm
Step size of speed when making the setting with PC software ACS410: 1 rpm
Maximum limit speed low-fire P1:
Corresponds to the maximum speed for low-fire P1 in revolutions per minute (rpm) at which the
burner still operates safely in the low-fire range.
Prerequisite: P517.01 ≥ P1
517.01
Note:
Step size of speed when making the setting with operating unit AZL2...: 10 rpm
Step size of speed when making the setting with PC software ACS410: 1 rpm
Minimum limit speed high-fire P2:
Corresponds to the minimum speed for high-fire P2 in revolutions per minute (rpm) for the burner
operating in the high-fire range.
Prerequisite: P518.00 ≤ P2
518.00
Note:
Step size of speed when making the setting with operating unit AZL2...: 10 rpm
Step size of speed when making the setting with PC software ACS410: 1 rpm
Maximum limit speed high-fire P2:
Corresponds to the maximum speed for high-fire P2 in revolutions per minute (rpm) at which the
burner may operate.
Prerequisite: P518.01 ≥ P2
518.01
Note:
Step size of speed when making the setting with operating unit AZL2...: 10 rpm
Step size of speed when making the setting with PC software ACS410: 1 rpm
519 Maximum fan speed
Corresponds to the maximum fan speed (see supplier’s Data Sheet).
644 Number of pulses per revolution
Corresponds to the number of (Hall signal) pulses per revolution the fan feeds back to the control
(see supplier’s Data Sheet).
658.00 Startup PWM
PWM value the PWM fan needs as a minimum to start from standstill (see supplier’s Data Sheet).
658.01 Minimum operating limit of PWM
Represents the minimum limit value of PWM, which fan speed control does not cross.
658.02 Maximum operating limit of PWM
Represents the maximum limit value of PWM, which fan speed control does not cross.
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