Analog Output Objects - Toshiba E3 Manual

8.3.3 Analog Output Objects

IMPORTANT: Most of the AO objects detailed in this section map directly to EIII
configuration parameters (parameters accessible via the EIII's keypad). When these
parameters are changed (from either the keypad or N2 network), they are stored in the
EIII's non-volatile EEPROM. The EIII's EEPROM has a life span of 10,000 write cycles
per parameter; therefore do not write to any of these AO objects more than 10,000
times.
AO #1 ....Used to set the inverter's frequency command (note that the EIII will only use
this value as its active frequency command if AO #6 or parameter FMOd in
Gr. U t is set to 3). Although the adjustment range for this object is 0.00Hz ∼
400.00Hz, the actual frequency command will be internally limited by the
values of parameters UL, LL and FH in Gr.F.
AO #2 ....Accesses the EIII's acceleration time #1 parameter (ACC1 in Gr.F). As
indicated, the adjustment range and resolution depend on the setting of
parameter dSPt in Gr. U t. The value of dSPt is read by the Metasys interface
only on inverter initialization; therefore, if the setting of dSPt is changed, be
sure to reset the inverter to validate the changed setting and provide correct
network data interpretation.
AO #3 ....Accesses the EIII's deceleration time #1 parameter (dEC1 in Gr.F). As
indicated, the adjustment range and resolution depend on the setting of
parameter dSPt in Gr. U t. The value of dSPt is read by the Metasys interface
only on inverter initialization; therefore, if the setting of dSPt is changed, be
sure to reset the inverter to validate the changed setting and provide correct
N2 network data interpretation.
AO #4 ....Accesses the EIII's stall protection level parameter (StL1 in Gr. P r).
AO #5 ....Accesses the EIII's command mode selection parameter (CMOd in Gr. U t).
For Metasys network commands to affect the EIII's actual operation, this
object must be set to a value of 3. Note that if this parameter is changed
while the EIII is running, the changed value will not take effect until the
inverter is stopped.
AO #6 ....Accesses the EIII's frequency mode selection parameter (FMOd in Gr. U t).
For the frequency command (AO #1) set via the Metasys network to affect
the EIII's actual operation, this object must be set to a value of 3. Note that if
this parameter is changed while the EIII is running, the changed value will not
take effect until the inverter is stopped.
AO #7 ....Accesses the EIII's process (PID) control proportional gain parameter (GP in
Gr. F b).
AO #8 ....Accesses the EIII's process (PID) control integral gain parameter (GI in
Gr. F b).
AO #9 ....Accesses the EIII's process (PID) control lower limit frequency parameter
(PILL in Gr. F b). Note that the adjustment range of this object depends on the
setting of the maximum frequency parameter (FH in Gr.F). The value of FH is
read only on inverter initialization; therefore, if the setting of FH is changed, be
sure to reset the inverter to validate the changed setting and provide correct
N2 network data limit checking.
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