YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
683
The frequency reference will be at 100% when a signal of 5 V is input. As the drive output at this time is
restricted by
E1-04 [Maximum Output Frequency]
, the frequency reference will be at 100% when a signal of 5
V or more is input.
Figure 11.71 Frequency Reference When the Analog Input Gain Setting Is Adjusted
•
The function set for terminal A1 is set with
Frequency Reference [H3-02 = 0]
, the gain is 100%
[H3-03 =
100.0]
, and the bias is -25%
[H3-04 = -25.0]
.
The frequency reference will be at -25% when a signal of 0 V is input.
When
H3-01 = 0 [Terminal A1 Signal Level Select = 0 to 10V (Lower Limit at 0)]
is set, the frequency
reference will be at 0% when a signal of 0 V to 2 V is input. The frequency reference will be at 0% to 100%
when a signal of 2 V to 10 V is input.
Signals of both positive and negative polarities are enabled when
H3-01 = 1 [-10 to +10V (Bipolar Reference)]
is set, and so the motor rotates in reverse when a signal of 0 V to 2 V is input.
Figure 11.72 Frequency Reference When Negative Number Bias Is Set
MEMOBUS/Modbus Multi-Function AI1 to 3 Function Selection
Allows the MFAI function to be assigned to MEMOBUS register
15C1 to 15C3 (Hex.) [Mbus Reg 15C1h to
15C3h Input Function]
. Select the function with
H3-40 to H3-42 [Mbus Reg 15C1h to 15C3h Input Function]
and
set the input filter with
H3-43 [Mbus Reg Inputs FilterTime Const]
.
Table 11.33 MEMOBUS Multi-Function AI Command Register
Register No.
(Hex.)
Name
Parameter
15C1
Mbus Reg 15C1h Input Function
-32767 to 32767
H3-40
15C2
Mbus Reg 15C2h Input Function
-32767 to 32767
H3-41
15C3
Mbus Reg 15C3h Input Function
-32767 to 32767
H3-42
*1
Set as 100% = 4096.
Figure 11.73 Functional Block Diagram for MEMOBUS Multi-Function AI Command 1
