YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 210

When switching between the master and auxiliary speeds, set H3-05 (Multi-function analog input terminal
A3) to 2 (auxiliary frequency reference, 2nd step analog) and set on of the multi-function input terminals to
multi-step speed reference 1.
When inputting a current to terminal A2 for the master speed frequency reference, set H3-08 (Multi-function
analog input terminal A2 signal level selection) to 2 (current input), and set H3-09 (Multi-function analog
input terminal A2 function selection) to 0 (add to terminal A1).
Setting Frequency Reference Using Pulse Train Signals
When b1-01 is set to 4, the pulse train input to control circuit terminal RP is used as the frequency reference.
Set H6-01 (Pulse Train Input Function Selection) to 0 (frequency reference), and then set the 100% reference
pulse frequency to H6-02 (Pulse Train Input Scaling).
Low level voltage
High level voltage
Pulse frequency
-4
6
2 kΩ
2 kΩ
Fig 6.4 Switching between Master and Auxiliary Frequencies
Pulse Input Specifications
0.0 to 0.8 V
3.5 to 13.2 V
Heavy duty 30 to 70%
0 to 32 kHz
Fig 6.5 Frequency Reference Using Pulse Train Input
Inverter
S5 Multi-step speed
reference 1
+V Power supply: 15 V,
20 mA
Master speed
A1 frequency reference
(voltage input)
Master speed
4 to 20 mA
frequency reference
A2
(current input)
Auxiliary speed
A3
frequency reference 1
AC Analog common
32 kHz max.
3.5 to 13.2 V
RP(Pulse train input termi-
Pulse input
AC (Analog common)
Inverter
nal)