YASKAWA E1000 User Manual

6.5 Alarm Detection
276 YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Communications cable is disconnected or damaged.
• Check the connector to make sure the cable has a signal.
• Replace the communications cable.
Digital Operator Display Minor Fault Name
CrST
Cannot Reset
Cause Possible Solutions
A fault reset command was entered while the Run
command was still present.
• Ensure that a Run command cannot be entered from the external terminals or option card during fault reset.
• Turn off the Run command.
Digital Operator Display Minor Fault Name
dnE Drive Disabled
Cause Possible Solutions
“Drive Enable” is set to a multi-function contact
input (H1- = 6A) and that signal was switched
off.
Check the operation sequence.
An input set for "Bypass/Drive enable 2" (H1- =
70) is open while another input terminal that enables
the Run command is closed.
Digital Operator Display Minor Fault Name
EF
Forward/Reverse Run Command Input Error
Both forward run and reverse run closed simultaneously for over 0.5 s.
Cause Possible Solutions
Sequence error
Check the forward and reverse command sequence and correct the problem.
Note: When minor fault EF detected, motor ramps to stop.
Digital Operator Display Minor Fault Name
EF0
Option Card External Fault
An external fault condition is present.
Cause Possible Solutions
An external fault was received from the PLC with
F6-03 = 3 (causing the drive to continue running
when an external fault occurs).
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
There is a problem with the PLC program. Check the PLC program and correct problems.
Digital Operator Display Minor Fault Name
EF1
External fault (input terminal S1)
External fault at multi-function input terminal S1.
EF2
External fault (input terminal S2)
External fault at multi-function input terminal S2.
EF3
External fault (input terminal S3)
External fault at multi-function input terminal S3.
EF4
External fault (input terminal S4)
External fault at multi-function input terminal S4.
EF5
External fault (input terminal S5)
External fault at multi-function input terminal S5.
EF6
External fault (input terminal S6)
External fault at multi-function input terminal S6.
EF7
External fault (input terminal S7)
External fault at multi-function input terminal S7.
EF8
External fault (input terminal S8)
External fault at multi-function input terminal S8.
Cause Possible Solutions
An external device has tripped an alarm function. Remove the cause of the external fault and reset the multi-function input value.
Wiring is incorrect.
• Ensure the signal lines have been connected properly to the terminals assigned for external fault detection (H1- =20to2F).
• Reconnect the signal line.
Multi-function contact inputs are set incorrectly.
• Check if the unused terminals have been set for H1- = 20 to 2F (External Fault).
• Change the terminal settings.
Digital Operator Display Minor Fault Name
FbH
Excessive PI Feedback
The PI feedback input is higher than the level set in b5-36 for longer than the time set in b5-37, and b5-12 is set to 1 or 4.
Cause Possible Solutions
Parameters settings for b5-36 and b5-37 are
incorrect.
Check parameters b5-36 and b5-37.
PI feedback wiring is faulty. Correct the wiring.
Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.
Feedback input circuit is damaged.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact Yaskawa or your nearest
sales representative.
SIEP_C710616_35.book 276 ページ ２０１５年１１月３０日 月曜日 午後２時２分

YASKAWA E1000 Specifications

General

Brand	YASKAWA
Model	E1000
Category	Controller
Language	English