Yaskawa APOGEE FLN - Manual (Page 16)

YASKAWA TOEP YAICOM 10A Z1000 Bypass Network Protocol Apogee FLN Technical Manual
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‹ Other Functionality
Each of the following functions must be enabled during start-up of the Drive:
Enable the drive to run
RUN ENABLE (Point 35) can be commanded to require the drive to have a physical input (DI-2) set before the drive can run.
This works in conjunction with CMD RUN.STOP (Point 24) or the CMD REV.STOP (Point 22). If RUN ENABLE (Point 35) is
commanded ON then terminal for DI-2 does not need to be on and CMD RUN.STOP (Point 24) or CMD REV.STOP (point 22)
needs to be commanded ON for the drive to run. If, on the other hand, RUN ENABLE (Point 35) is commanded OFF, then to run
the drive the input terminal for DI-3 needs to be on and either CMD RUN.STOP (Point 24) or CMD REV.STOP (Point 22), needs
to be commanded ON.
Start and stop the drive
CMD RUN.STOP (Point 24) can be commanded to run the Bypass in the forward direction. STOP.RUN (Point 23) shows the
current status of the Bypass.
Change directions
CMD REV.STOP (Point 22) can be commanded to run the drive in the reverse direction (ignored in Bypass Mode). FWD.REV
(Point 21) shows the current direction of the drive rotation.
CAUTION
Improper drive direction may damage HVAC equipment if parameter b1-04, Reverse Enable, is
improperly set (b1-04 = 0).
Digital Outputs
MULTI OUT 1 (Point 40), MULTI OUT 2 (Point 41), and MULTI OUT 3 (Point 42) are physical digital outputs on the
Bypass (DO-7 through DO-9). Their purpose depends on how the Bypass has been set-up. The Bypass can be programmed so
that these points can display various limits, warnings, and status conditions. Some examples include HOA state, Drive or Bypass
Mode, Fault Active, and Loss of Load detected.
Loop gain
PID P GAIN (Point 63) and PID I TIME (Point 64) are the gain and integral time parameters similar to the P and I gains in the
APOGEE Terminal Equipment Controllers. The Z1000 Bypass’s PI loop is structured differently than the Siemens loop, so there
is not a one-to-one correspondence between the gains.
Reading and resetting faults
OK.FAULT (Point 93) shows the current status of the Bypass. FAULT CODE (Point 17) contains the code for the most current
fault. LST FLT CODE (Point 66) contains the code for the previous drive fault. See table below for descriptions of the fault codes.
The drive can be reset back to OK mode by commanding RESET FAULT (Point 94) to RESET
.