Yaskawa VCD 723 - Manual (Page 62)

4 Troubleshooting/Maintenance
56 Fault and Error Conditions
9/15/93
ERROR/FAULT PROBABLE CAUSE CORRECTIVE ACTION
Verify the KVA setting constant SN01.
Whenever changing parameter settings
the following procedure must be
followed:
➊
Correct the setting.
❷
Use function 994 to transfer the
data from RAM to NVRAM.
❸
Turn power off.
❹
When the charge light is off, then
turn power on.
Verify all of the lettered constant
settings. Whenever changing parameter
settings the following procedure must
be followed:
➊
Correct the setting.
❷
Use function 994 to transfer the
data from RAM to NVRAM.
❸
Turn power off.
❹
When the charge light is off, then
turn power on.
➊
Verify the settings of the constants
SN15, SN16, SN17, SN18.
❷
Verify data relationship (SN15,
SN16, SN17, SN18).
Whenever changing parameter settings
the following procedure must be
followed:
➊
Correct the setting.
❷
Use function 994 to transfer the
data from RAM to NVRAM.
❸
Turn power off.
❹
When the charge light is off, then
turn power on.
Verify the settings of the constants that
affect the Torque control. Whenever
changing parameter settings the
following procedure must be followed:
➊
Correct the setting.
❷
Use function 994 to transfer the
data from RAM to NVRAM.
❸
Turn power off.
❹
When the charge light is off, then
turn power on.
Table 8. Standard Error and Fault Descriptions - Continued
762, KVA SETTING ERR
763, SETTING ERROR
764, SN15-18 SET ERR
765, TRQ SELECT ERR
Drive declared that the KVA setting is
out of range.
Drive declared that a constant in the
Dual Port RAM (between the
MicroTrac card and the inverter) is out
of range.
Drive declared that one or more of the
constants SN15, SN16, SN17, SN18,
are invalid.
Drive declared the Torque control
mode selection is in error.