Operation Errors - YASKAWA Varispeed E7 Instruction Manual And Parameter Description

Operation Errors

An operation error will occur if there is an invalid setting or a contradiction between two constant settings. It
won't be possible to start the Inverter until the constants have been set correctly. (The alarm output and fault
contact outputs will not operate.)
When an operation error has occurred, refer to the following table to identify and correct the cause of the
errors.
Table 7.3 Operation Error Displays and Incorrect Settings
Display Meaning
Incorrect Inverter
capacity setting
Constant setting range
error
Multi-function input
selection error
Option Card selection
error
PI control selection
error
V/f data setting error
Constant setting error
EEPROM write error
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The Inverter capacity setting doesn't match the Unit. Check constant o2-04 for the
correct setting.
The constant setting is outside of the valid setting range.
One of the following errors has been made in the multi-function input (H1-01 to H1-
05) settings:
• The same setting has been selected for two or more multi-function inputs.
• An up or down command was selected separately. (They must be used together.)
• The up/down commands (10 and 11) and Accel/Decel Ramp Hold (A) were
selected at the same time.
• Speed Search 1 (61) and Speed Search 2 (62) were selected at the same time for a
digital input.
• External Baseblock NO (8) and External Baseblock NC (9) were selected at the
same time.
• The up/down commands (10 and 11) were selected while PI Control (b5-01) was
enabled.
• The emergency stop command NO and NC have been set at the same time.
The Option Card was selected as the frequency reference source by setting b1-01 to
3, but an Option Card isn't connected (C option).
The following settings have been made at the same time.
• b5-01 (PI Control Mode Selection) has been set to a value other than 0.
• b5-15 (PI Sleep Function Operation Level) has been set to a value other than 0.
• b1-03 (Stopping Method Selection) has been set to 2 or 3.
Constants E1-04, E1-06, E1-07, and E1-09 do not satisfy the following conditions:
• E1-04 (FMAX) ≥ E1-06 (FA) > E1-07 (FB) ≥ E1-09 (FMIN)
• E3-02 (FMAX) ≥ E3-04 (FA) > E3-05 (FB) ≥ E3-07 (FMIN)
One of the following constant setting errors exists.
• C6-05 (Carrier frequency Gain) > 6 and C6-03 (Carrier Frequency Upper Limit) <
C6-04 (Carrier Frequency Lower Limit)
• Upper/lower limit error in C6-03 to 04.
A verification error occurred when writing EEPROM.
• Try turning the power supply off and on again.
• Try setting the constants again.
Protective and Diagnostic Functions
Incorrect settings
9
7-