Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 208)

Setting 4: HAND-BYPASS
When drive powers up , the bypass will get a "HAND” command and needs an “OFF” command to stop.
n Z1-07: Speed Reference Select
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. Name Setting Range Default
Z1-07 Speed Reference Select 0 to 3 1
Setting 0: HOA Keypad
Using this setting, the frequency reference can be input by:
• switching between the multi-speed references from d1-01 to d1-04.
• entering the frequency reference on the operator 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
Table 5.27 for the input
used.
Table 5.27 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 5.53 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
Table 5.28 for an example to set terminal A2 for
current input.
Table 5.28 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
5.14 Z: Bypass Parameters
208 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual