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Configuring the terminal block
5.4 Analog inputs
Inverter with CU240B-2 and CU240E-2 Control Units
98
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
You must also set the DIP switch for the analog input on the Control Unit.
The DIP switch is located on the Control Unit behind the lower front
doors.
Voltage input: Switch position U (factory setting)
Current input: Switch position I
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Scaling characteristic of the analog input
When p0756 is changed, a linear scaling characteristic matching the setting is automatically
set. The characteristic is determined by two points (p0757[0…1], p0758[0…1]) and
(p0759[0…1], p0760[0…1]). The parameters with index 0 apply to analog input 0 and
parameters with index 1 apply to analog input 1.
The scaling characteristic can be adjusted to suit your requirements.
Table 5- 8
Scaling characteristic and wire-breakage monitoring
Parameter
Description
p0757[0…1] x-coordinate of 1st characteristic point [V or mA]
p0758[0…1] y coordinate of the 1st characteristic point [% of p200x]
p200x are the parameters of the reference variables, e.g. p2000 is the reference
speed.
p0759[0…1] x-coordinate of 2nd characteristic point [V or mA]
p0760[0…1] y-coordinate of 2nd characteristic point [% of p200x]
p0761[0…1] Wire breakage monitoring response threshold
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Figure 5-1
Examples for scaling characteristics