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3-5
PA 7300
PART II: OPERATION MANUAL
B.) Warning and Self-Diagnosis Functions
PROTECTION FUNCTION
EXPLANATION
LCD DISPLAY
(ENGLISH
)
Low-voltage protection
Monitor display appears if low voltage protection conditions such as a drop
(blinking)
main circuit voltage
in main circuit voltage or momentary power loss occur while the AC Drive
Alarm (UV)*
1
insufficient
output is off.
DC Volt. Low
High voltage protection*
2
Monitor display appears when the main circuit DC voltage rises above the
(blinking)
detection level while the AC Drive output is off.
Alarm (OV)*
1
Over Voltage
Cooling fin
Monitor display appears when a separate thermal protector contact is
(blinking)
overheat warning
input to the external terminal. (Sn-15 ~ 18 = OB)
Alarm (OH2)*
1
Over Heat
Overtorque detection*
2
This function is used to protect the machine and to monitor the AC Drive
output torque. The AC Drive output reacts in a preset manner when the
(blinking)
AC Drive output current exceeds the over torque detection level. The
Alarm (OL3)*
1
monitor display blinks when “operation continue” is preset.
Over Torque
During
AC Drive acceleration is stopped when 150% of or more of the AC Drive
acceleration rated current is required by the load. This prevents overload protection
–
Stall prevention
(OL2) or overcurrent (OC) from occurring. When current is reduced to less
Accel/decel is
than 170%, acceleration is enabled.
accomplished
During
Output frequency is decreased when 130% of the AC Drive rated current or
with maximum normal
greater is required by the load. This prevents motor and AC Drive overload
–
capacity of the operation
(OL1, OL2). When current is reduced below 130%, AC Drive acceleration is than enabled.
AC Drive without During
Deceleration is stopped when the DC voltage is caused to rise by motor
tripping on
deceleration regenerative energy. This prevents overvoltage trips (OV). When DC
–
over current or
voltage decreases, deceleration to the set value then resumes
overvoltage
Simultaneous normal and
When forward and reverse rotation commands are simultaneously
(blinking)
reverse rotation commands
detected for a period of time exceeding 500 ms, the AC Drive is stopped
Alarm (EF)*
1
according to the preset stop method.
Input Error
Terminal 3
(blinking)
Alarm (EF3)*
1
External Fault 3
Terminal 5
(blinking)
It is indicated on the monitor when the mode after external signal input is
Alarm (EF5)*
1
set to “Operation continue.”
External Fault 5
External Fault
Terminal 6
• Ref. to the external faults 5 ~ 8 setting on page 87
(blinking)
Signal Input
• Minor fault setting - terminal 3 (Sn-12=11XX)
Alarm (EF6)*
1
(Minor fault)
External Fault 6
terminal 5 (Sn-15=2C)
Terminal 7
terminal 6 (Sn-16=3C)
(blinking)
terminal 7 (Sn-17=4C)
Alarm (EF7)*
1
terminal 8 (Sn-18=5C)
External Fault 7
Terminal 8
(blinking)
Alarm (EF8)*
1
External Fault 8
Operator transmission fault 1
Alarm (CPF00)*
1
(Initial fault)
OP comm. Error 1
Digital Operator
communication error
Operator transmission fault 2
Alarm (CPF01)*
1
(on time fault)
OP comm. Error 2
[
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Содержание PA7300 Series
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Страница 10: ...PART I INSTALLATION MANUAL ...
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Страница 154: ...5100 N IH 35 Round Rock Texas 78681 USA 1 800 279 4007 www tecowestinghouse com ...