Danfoss VLT MICRO Manual page 37

Pr.36, Pr.37 – Reference Frequency: Upper / Lower limit
Pr.36 Reference Frequency Upper Limit
Factory Setting 400.0 Hz
Units 0.01 Hz
Parameter Value 0.01 - 400.0 Hz
This parameter programs the upper limit of the reference frequency in 0.01 Hz increments.
Pr.37 Reference Frequency Lower Limit
Factory Setting 0.00 Hz
Units 0.01 Hz
Parameter Value 0.10 - 400.0 Hz
Determines the lower limit of the reference frequency in 0.01 Hz increments.
Output frequency
Application Notes:
1. Parameters 36, 37 are provided to prevent damage to the AC motor and
applicable machinery. Under certain conditions a motor can overheat and/or machinery
can be damaged at excessively high speeds.
2. The lower limit for AC drive operation is determined by the greater value of Pr.08
(Minimum Output Frequency) and Pr.37 (Reference Frequency Lower Limit). The
upper limit for AC drive operation is determined by the lesser value of Pr.03
(Maximum Output Frequency and Pr.36 Reference Frequency Upper Limit).
Pr.38 Multi-Function Input Terminals (M0, M1)
Factory Setting 00
Units None
Settings 00 - 02
Pr.39 Multi-Function Input Terminals (M2)
Factory Setting 05
Units None
Settings 03 - 20
Pr.36
Pr.37
37
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VLT
Input frequency
Value M0,M1 Function
00 M0: Fwd./Stop, M1: Rev./Stop1
01 M0: Run/Stop, M1: Fwd./Rev.1
02 3-Wire Operation Control Mode1
MICRO