Chapter 4: AC Drive Parameters
Page 4–109
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Type Hex Addr Dec Addr
P4.57 AO2 0~20mA/4~20mA Selection
R/W 0439 41082
Range/Units (Format: 16-bit binary) Default
0: 0~20mA
1: 4~20mA
0
This parameter determines the scaling and offset for Analog Output 2 (AO2).
See also DIP switch AO2 located above the control terminal strip.
This analog output can be set to fixed levels (thru comms, keypad, etc.). P4.54 must be set for 13:
Fixed Voltage to use AO2. If writing via comms, the values are 0~10000 for 0~100.00%. (Gains =
100%, 0~20mA selection = 0~20mA, Negative value handle ≠2)
P4.60 and P4.61 work with the setting “#13 Constant voltage output” of “P4.50 & P4.54” to set up
the constant voltage at AO.
For example: At P4.60, set 0~100.00% to correspond to the 0~10V of AO1. At P4.61, set 0~100.00%
to correspond to the 0~10V of AO2.
Type Hex Addr Dec Addr
P4.58 reserved
♦R/W 043A 41083
Range/Units Default
Type Hex Addr Dec Addr
P4.59 AO2 Offset (Bias)
♦R/W 043B 41084
Range/Units (Format: 16-bit signed) Default
–100�00% to +100�00%
0�00
This parameter is used to add or subtract from the AO2 signal.
Example 1:
If AO2 0~10V is set to Output Frequency (P4.54 = 0: Output Freq), the output equation is:
10V x AO2 Gain x (Output Frequency / Max Output Frequency) + 10V x AO2 Offset (Bias)
10V x P4.55 x (Output Frequency / P0.04) + 10V x P4.59)
Example 2:
If AO2 0~20mA is set to Output Frequency (P4.54 = 0: Output Freq), the output equation is:
20mA x AO2 Gain x (Output Frequency / Max Output Frequency) + 20mA x AO2 Offset (Bias)
20mA x P4.55 x (Output Frequency / P0.04) + 20mA x P4.59)
Example 3:
If AO2 4~20mA is set to Output Frequency (P4.54 = 0: Output Freq), the output equation is:
4mA + (16mA x AO2 Gain) x (Output Frequency / Max Output Frequency) + 16mA x AO2 Offset (Bias)
4mA + (16mA x P4.55) x (Output Frequency / P0.04) + 16mA x P4.59)
To Next Page
Loading...
