YASKAWA CIMR-F7A Instruction Manual page 205

Switch between 2 Step Speeds: Master/Auxiliary Speeds
When switching between the master and auxiliary speeds, input the master speed frequency reference to con-
trol circuit terminal A1 and the auxiliary speed frequency reference to control circuit terminal A2
master speed frequency reference input to terminal A1 will be used for the Inverter frequency reference when
the master speed reference 1 allocated to multi-function input terminal (factory setting: S5) is OFF, and the
auxiliary speed frequency reference input to terminal A2
ence when the multi-speed reference 1 allocated to multi-function input terminal is ON.
When using terminal A2 as the input terminal of auxiliary speed frequency reference, set H3-09 (Multi-func-
tion analog input terminal A2 function selection) to 2 [Auxiliary speed reference frequency 1 (2nd speed ana-
log)].
When using terminal A3 as the input terminal of auxiliary speed frequency reference, set H3-05 (Multi-func-
tion analog input terminal A3 function selection) to 2 [Auxiliary speed frequency reference 1 (2ndspeed
analog)].
Precautions on Setting DIP Switches and Constants
When inputting voltage signals to terminal A2, set the pin 2 of the current/voltage switching DIP switch
•
S1-2 to OFF side (factory setting: ON).
When inputting current signals to terminal A2, set the pin 2 of the current/voltage switching DIP switch
•
S1-2 to ON side (factory setting: ON).
When setting terminal A2 as the master speed frequency input terminal and terminal A1 as the auxiliary
•
speed frequency input terminal, set the H3-09 (Multi-function analog input terminal A2 function selection)
to 2 and H3-05 (Multi-function analog input terminal A3 function selection) to a number other than 0 and
H3-05 (Multi-function analog input terminal A3 function selection) to a number other than 0 and 2.
And then, set H3-13 (Terminal A1/A2 switching) to 1.
H3-09 and H3-05 cannot be set to 2 at the same time.
•
-8
6
+V (Power supply: 15 V,
20 mA)
A1 (Auxiliary speed
frequency refrence)
1 to 20 mA input
A2 (A3) (Master speed
AC (Analog common)
Fig 6.6 Switching between Master and Auxiliary Frequencies
or A3
will be used for the Inverter frequency refer-
Inverter
frequency refrence)
DIP switch S1
or A3
. The