Yaskawa GPD503 Drive User Manual
Page 109
INDICATION
(DISPLAY)
FAILURE INDICATION ITEM
DESCRIPTION
EF
Simultaneous forward and
Fwd Run and Rev Run commands are both closed for
(blinking)
reverse operation commands
more than 500 ms. Removing one command will allow
drive operation.
EF0
External fault
GPD 503 is in Stop mode.
EF3
Ext. fault signal at term. 3
A fault condition has occurred in the external circuit(s)
EF5
Ext. fault signal at term. 5
monitored by the contact providing input to the indicated
EF6
Ext. fault signal at term. 6
terminal.
If display is steady, GPD 503 is in Stop mode; if display
EF7
Ext. fault signal at term. 7
is blinking, the terminal is programmed to allow continued
EF8
Ext. fault signal at term. 8
operation after receiving fault input.
E r r
Constant write-in fault
Temporary display, in Program mode, indicating that
constant setting was not written into EPROM memory.
FAn
Cooling fan failure
GPD 503 is in Stop mode.
FU
Fuse blown
DC Bus fuse has cleared. Check for short circuit
in output, and check main circuit transistors.
GF
Ground fault protection
Ground current > approx. 50% of the GPD 503 rated
current.
oC
Overcurrent
GPD 503 output current exceeds 200% of GPD 503
rated current, or ground fault has occurred, with ground
current exceeding 50% of GPD 503 rated current.
oH
Heat sink overheated
Fin temperature exceeds 90° C (194° F)
oH2
External overheat
External temperature monitoring circuit(s) detected an
(blinking)
overtemperature condition and produced an input signal.
oL1
Overload
Thermal motor overload protection has tripped.
oL2
Overload
GPD 503 overload protection has tripped.
oL3
Overload
GPD 503 output torque exceeds the set Overtorque
(blinking)
Detection level, but GPD 503 is programmed for
continued operation at overtorque detection.
oL3
Overload
GPD 503 output torque exceeds the set Overtorque
Detection level, and GPD 503 is programmed for
coast to stop at overtorque detection.
oPE01 *
kVA constant setting fault
Sn-01 setting is incorrect.
oPE02 *
Constant setting range fault
An-XX, bn-XX, Cn-XX, or Sn-XX setting range fault.
oPE03 *
Constant set value fault
Sn-15 to -18 (multi-function input) set value fault.
oPE04 *
Constant set value fault
PG constant, number of poles, or PG division rate set
incorrectly.
oPE10 *
Constant set value fault
Cn-02 to -08 (V/f data) set incorrectly.
oPE11 *
Constant set value fault
One of the following conditions was detected:
• Cn-23 > 5 KHz and Cn-24
≤
5 KHz
• Cn-25 > 6 and Cn-24 > Cn-23
* These fault displays occur only when in the Program mode, when changing back to
Drive mode from Program mode, or when applying power to the GPD 503.
Table 6-1. Failure Indication and Details - Continued
INDICATION
(DISPLAY) FAULT
DESCRIPTION
6-2