YASKAWA Z1000U Technical Manual page 178

5.14 Z: Bypass Parameters
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 124
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.
Z1-08
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.
352 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.
Z1-09
<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.
Z1-10
<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.
178
Jumper S1
A1/A2/A3
Voltage/Current
Selection
A1 A2 A3
0 or 4 to 20 mA
for details on using this function.
Name
Run Command Select
Name
HAND Mode Drive Speed Reference
Name
Smoke Purge Preset Frequency Reference
Drive
V
I
+V 10.5 V, 20 mA power supply
A1 Analog Input 1
A2 Analog Input 2
A3 Analog Input 3
AC Analog input common
Refer to MEMOBUS/Modbus Configuration on page
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
Setting Range
1 to 3
Setting Range
<1>
0.0 to 60.0 Hz
Setting Range
<1>
0.0 to 60.0 Hz
Refer
Default
1
Default
<1>
10.0 Hz
Default
<1>
10.0 Hz