Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 113)

No. Name Display Content
2 Bypass Status Display
AUTO
XFER EN Displayed when running in Auto Transfer, a fault was detected and switched to Bypass Mode.
ENRGY
SAVEN
Displayed when running in Energy Savings Mode
MTR
STOPPING Displayed when fault is removed but motor is still ramping down.
FAULTED Displayed when a fault has been detected causing motor output contactors to open.
3 Data Display — Displays specific data and operation data.
4
Frequency
Reference
Source <1>
OPR Displayed when the frequency reference source is the HOA keypad.
COM
Displayed when the frequency reference source is the MEMOBUS/Modbus Communication Inputs
of the drive.
OP Displayed when the frequency reference source is an option card connected to the drive.
AI Displayed when the function reference is assigned to an analog input.
OFF Displayed when HAND mode is OFF.
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HAND/OFF/AUTO
(Run or Stop) Display <2>
RSEQ Displayed when the Run command is supplied from a remote source in OFF or AUTO Modes.
LSEQ Displayed when the Run command is supplied from the operator keypad in HAND Mode.
RREF Displayed when the Run command is supplied from a remote source in OFF or AUTO Modes.
LREF Displayed when the Run command is supplied from the operator keypad in HAND Mode.
6
Function Key 2
(F2)
DATA
Pressing F2 scrolls to the next display.
→
Pressing F2 scrolls the cursor to the right.
DRV/BYP Pressing F2 toggles selection between Bypass Mode and Drive Mode.
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Function Key 1
(F1)
HELP
Pressing F1 displays the Help menu.
←
Pressing F1 scrolls the cursor to the left.
HOME
Pressing F1 returns to the top menu (Frequency Reference).
ESC
Pressing F1 returns to the previous display.
RLY Pressing F1 selects/deselects Drive Test Mode. During Drive Test Mode, power is applied to the
drive while in Bypass Mode by forcing the drive input contactor to close (3-contactor bypass only).
<1> Displayed when in Frequency Reference Mode.
<2> Displayed when in Frequency Reference Mode and Monitor Mode.
u Bypass Control Board LEDs
The bypass control board has six bi-color LEDs.
The operational states of the bypass LEDs after completion of the power-up diagnostic LED sequence are described in
Table
4.2 . Wait at least 2 seconds for the power-up diagnostic process to complete before verifying LED states.
Table 4.2 Bypass Control Board LED States
Name Description Color Behavior
MS Module Status Green
Turns ON when transmitting
Turns OFF when receiving
(Internal serial communications)
NS Network Status Green
Turns ON when transmitting
Turns OFF when receiving
(External serial communications)
ST1 ST1, Status 1 Green
Round status
Toggles ON/OFF every 500 rounds
ST2 ST2, Status 2 Green
Scan status
Toggles ON/OFF every 500 scans
ST3 ST3, Status 3 Green Not used
ST4 ST4, Status 4 Green Not used
4.2 Using the HOA Keypad
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 113
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Start-Up Programming & Operation