Yaskawa GPD503 Drive - Manual (Page 108)

Section 6. FAILURE INDICATION AND DETAILS
6.1 GENERAL
A failure in the GPD 503 can fall into one of two categories.
A blinking "Alarm" indication is a warning that a GPD 503 trouble condition will soon
occur, or that a problem exists in the external circuitry. The GPD 503 will continue to
operate during an "Alarm" indication. "Alarm" indications are not entered into the fault
register.
A steady "Fault" indication is displayed when the GPD 503’s Fault relay has tripped
(GPD 503 shutdown). The motor coasts to a stop, and a fault signal output is present at
control circuit terminals 18 - 20.
INDICATION
(DISPLAY) FAILURE INDICATION ITEM DESCRIPTION
bb External Base Block Base Block command at multi-function terminal is active,
(blinking) command shutting off GPD 503 output (motor coasting). Temporary
condition, cleared when input command is removed.
bUS Transmission error Control data cannot be received normally for
longer than 2 seconds.
CALL Communication ready Drive is waiting for the PLC to establish communication.
CPF00 Transmission error or control Transmission between GPD 503 and remote operator is
function hardware fault not established within 5 seconds after the power supply is
(including internal RAM, turned on. (Displayed on the remote operator.)
external RAM or PROM)
CPF01 Transmission error Transmission error occurs 2 seconds or more
after transmission has first been established.
CPF02 Base block circuit failure GPD 503 failure.
CPF03 NV-RAM (S-RAM) fault GPD 503 failure.
CPF04 NV-RAM (BCC, Access Code) GPD 503 failure. This fault may be caused after changing
fault EPROM chips. Perform a Sn-03 Reset operation to
attempt to clear this fault.
CPF05 A/D converter failure in CPU GPD 503 failure.
CPF06 Optional connection failure Improper installation or wiring of option card.
CPF20 A/D converter failure Defective option card.
CPF21 Transmission interface card Defective option card. Check option card connector for
(option) self-analysis proper installation.
function fault
CPF22 Model code fault Defective option card. Check option card connector for
proper installation.
CPF23 Mutual-analysis function Defective option card. Check option card connector for
fault proper installation.
Table 6-1. Failure Indication and Details
INDICATION
(DISPLAY) FAULT DESCRIPTION
6-1