Lenze i550

8.1.3 Speed limitaon
The torque control controls the assigned torque setpoint within the set speed limits. The
actual speed results from the load condions of the applicaon. For example, high speeds
may occur in a torque control if no counter torque is available (load-free machine).
When the actual speed reaches the set speed limits, it is kept on the respecve limit value.
This funcon is also called "speed limitaon".
Details
The lower and upper speed limit for speed limitaon can be set independently of each other.
They can also be dened via analog inputs or network.
Required parameter seng:
1.
Select the source for the upper speed limit in 0x2946:003 (P340.03).
•
Default seng: Maximum frequency-[0] 0x2916 (P211.00)
•
In case of selecon "Analog input 1 [2]": Set the seng range in 0x2636:002 (P430.02)
and 0x2636:003 (P430.03).
•
In case of selecon "Analog input 2 [3]": Set the seng range in 0x2637:002 (P431.02)
and 0x2637:003 (P431.03).
•
In case of selecon "Upper frequency limit [4]": Set the upper speed limit in [Hz] in
0x2946:005 (P340.05).
•
In case of selecon "Upper speed limit [5]": Set the upper speed limit in [vel. unit] in
0x2946:001 (P340.01).
•
The current upper speed limit is displayed in 0x2946:007 (P340.07).
2.
Select the source for the lower speed limit in 0x2946:004 (P340.04).
•
Default seng: (-) Maximum frequency-[0] 0x2916 (P211.00)
•
In case of selecon "Analog input 1 [2]": Set the seng range in 0x2636:002 (P430.02)
and 0x2636:003 (P430.03).
•
In case of selecon "Analog input 2 [3]": Set the seng range in 0x2637:002 (P431.02)
and 0x2637:003 (P431.03).
•
In case of selecon "Lower frequency limit [4]": Set the lower speed limit in [Hz] in
0x2946:006 (P340.06).
•
In case of selecon "Lower speed limit [5]": Set the lower speed limit in [vel. unit] in
0x2946:002 (P340.02).
•
The output frequency is absolutely limited regardless of the seng 0x2946:003
(P340.03) and 0x2946:004 (P340.04) by 0x2916 (P211.00) in the “Torque mode”.
•
The current lower speed limit is displayed in 0x2946:008 (P340.08).
Parameter
Address Name / seng range / [default seng] Info
0x2946:001
(P340.01)
Speed limitaon: Upper speed limit
(Speed limitaon: Upper limit)
-480000 ... [0] ... 480000 vel. unit
•
From version 03.00
Upper limit for the speed limitaon.
•
Seng is only eecve with the selecon "Upper speed limit [5]" in
0x2946:003 (P340.03).
•
Entry via keypad and Lenze Tools is in rpm!
•
Via RPDO, the unit is vel. unit. and the scaling must be taken into
account.
•
± 480000 rpm = ±2 ^ 31 [n-unit]
0x2946:002
(P340.02)
Speed limitaon: Lower speed limit
(Speed limitaon: Lower limit)
-480000 ... [0] ... 480000 vel. unit
•
From version 03.00
Lower limit for speed limitaon.
•
Seng is only eecve with the selecon "Lower speed limit [5]" in
0x2946:004 (P340.04).
•
Entry via keypad and Lenze Tools is in rpm!
•
Via RPDO, the unit is vel. unit. and the scaling must be taken into
account.
•
± 480000 rpm = ±2 ^ 31 [n-unit]
Conguring the torque control
Basic seng
Speed limitaon
155