Yaskawa Z1000U HVAC Matrix Bypass User Manual
Page 209
Drive
A1 Analog Input 1
0 or 4 to 20 mA
AC Analog input common
+V 10.5 V, 20 mA power supply
A2 Analog Input 2
A3 Analog Input 3
Jumper S1
A1/A2/A3
Voltage/Current
Selection
V
I
A1 A2 A3
Figure 5.54 Setting the Frequency Reference as a Current Signal to Terminal A2
Switching between Main/Auxiliary Frequency References
The frequency reference input can be switched between the analog terminals A1, A2, and A3 using multi-speed inputs.
to Multi-Step Speed Selection on page 156
for details on using this function.
Setting 2: BACnet, MEMOBUS/Modbus, P1, or N2 Communications
This setting requires entering the frequency reference via the RS-485 serial communications port (control terminals TXRX+
and TXRX-).
Setting 3: Option Card
This setting requires entering the frequency reference via an option board plugged into connector CN5 on the bypass control
board. Consult the option card manual for instructions on integrating the drive with the communication system.
n
Z1-08: Run Command Select
Determines the source of the Auto Mode RUN command used by the Bypass Controller.
No.
Name
Setting Range
Default
Z1-08
Run Command Select
1 to 3
1
Setting 0: HOA Keypad
Setting 1: Bypass Controller Digital Input
This setting requires entering the Run command via the digital input terminals.
Setting 2: BACnet, MEMOBUS/Modbus, P1, or N2 Communications
This setting requires entering the Run command via serial communications by connecting the RS-485 serial communication
cable to control terminals TXRX+ and TXRX- on the terminal block.
Refer to MEMOBUS/Modbus Configuration on page
for instructions.
Setting 3: Option Card
This setting requires entering the Run command via the communication option board by plugging a communication option
board into the CN5 port on the control PCB. Refer to the option card manual for instructions on integrating the bypass into
the communication system.
n
Z1-09: HAND Mode Drive Speed Reference
The speed reference used when the Drive is running in HAND mode.
No.
Name
Setting Range
Default
Z1-09
HAND Mode Drive Speed Reference
0.0 to 60.0 Hz
<1>
10.0 Hz
<1>
<1> Values are given in Hz, but actual values are dependent upon unit settings using drive parameters o1-03, o1-09, o1-10, and o1-11.
n
Z1-10: Smoke Purge Preset Frequency Reference
Sets the speed at which the drive will run when the Smoke Purge Drive input is active.
No.
Name
Setting Range
Default
Z1-10
Smoke Purge Preset Frequency Reference
0.0 to 60.0 Hz
<1>
10.0 Hz
<1>
<1> Values are given in Hz, but actual values are dependent upon unit settings using drive parameters o1-03, o1-09, o1-10, and o1-11.
5.14 Z: Bypass Parameters
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual
209
5
Programming