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1.2 b: Application
u
b1: Operation Mode Selection
n
b1-01: Frequency Reference Selection for AUTO Mode
Selects the frequency reference source 1.
Note:
If a Run command is input to the drive, but the frequency reference entered is 0 or below the minimum frequency, the AUTO or HAND
indicator LED on the HOA keypad will light and the OFF indicator will flash.
No.
Parameter Name
Setting Range
Default
b1-01
Frequency Reference Selection for AUTO Mode
0 to 3
1
Setting 0: HOA Keypad
Using this setting, the frequency reference can be input using the HOA keypad.
Setting 1: Terminals (analog input terminals)
Using this setting, an analog frequency reference can be entered as a voltage or current signal from terminals A1, A2, or A3.
Voltage Input
Voltage input can be used at any of the three analog input terminals. Make the settings as described in
used.
Table 1.5 Analog Input Settings for Frequency Reference Using Voltage Signals
Terminal
Signal Level
Parameter Settings
Notes
Signal Level
Selection
Function Selection
Gain
Bias
A1
0 to 10 Vdc
H3-01 = 0
H3-02 = 0
(Frequency Reference Bias)
H3-03
H3-04
–
-10 to +10 Vdc
H3-01 = 1
A2
0 to 10 Vdc
H3-09 = 0
H3-10 = 0
(Frequency Reference Bias)
H3-11
H3-12
Set jumper S1 on the terminal
board to “V” for voltage input.
-10 to +10 Vdc
H3-09 = 1
A3
0 to 10 Vdc
H3-05 = 0
H3-06 = 0
(Frequency Reference Bias)
H3-07
H3-08
Set DIP switch S4 on the
terminal board to “AI”.
-10 to +10 Vdc
H3-05 = 1
Drive
A1 Analog Input 1
0 to 10 V
AC Analog input common
2 k
+V 10.5 V, 20 mA power supply
A2 Analog Input 2
A3 Analog Input 3
Drive
A1 Analog Input 1
AC Analog input common
+V 10.5 V, 20 mA power supply
A2 Analog Input 2
A3 Analog Input 3
4 k
-10 to 10 V
OR
Customer
+/- 10 V
Supply
+10 V
-10 V
Common
Figure 1.1 Setting the Frequency Reference as a Voltage Signal at Terminal A1
Current Input
Input terminals, A1, A2, and A3 can accept a current input signal. Refer to
for an example to set terminal A2 for
current input.
Table 1.6 Analog Input Settings for Frequency Reference Using a Current Signal
Terminal
Signal
Level
Parameter Settings
Notes
Signal Level
Selection
Function
Selection
Gain
Bias
A2
4 to 20 mA
H3-09 = 2
H3-10 = 0
(Frequency Bias)
H3-11
H3-12
Make sure to set jumper S1 on the
terminal board to “I” for current
input.
0 to 20 mA
H3-09 = 3
1.2 b: Application
16
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual