Delta CP2000 Series, User Manual

Page: 638 / 868

Chapter 14 Fault Codes and Descriptions

CP2000
14-35
ID* Display on LCD Keypad Fault Name Fault Descriptions
61
Y-connection /
Δ-connection
switch error
(ydc)
An error occurs when
Y-
Δ switches
Action and Reset
Action level
1. ydc occurs when the confirmation signals of Y-connection and Δ-connection
are conducted at the same time.
2. If any of confirmation signals is not conducted within Pr.05-25, ydc occurs.
Action time Pr.05-25
Fault treatment parameter N/A
Reset method Manual reset
Reset condition
Can be reset only when the confirmation signal of Y-connection is conducted if it
is Y-connection, or when the confirmation signal of Δ-connection is conducted if
it is Δ-connection.
Record Yes
Cause Corrective Actions
The electromagnetic valve
operates incorrectly during Y-Δ
switch.
Check if the electromagnetic valve works normally.
If not, replace it.
Incorrect parameter setting Check if related parameters are all set up and set correctly.
The wiring of
Y-
Δ switch function is
incorrect
Check the wiring.
ID* Display on LCD Keypad Fault Name Fault Descriptions
62
Deceleration energy
backup error
(dEb)
When Pr.07-13 is not 0, and the power is suddenly off,
causing the DC bus voltage lower than the dEb action
level, the dEb function acts and the motor ramps to
stop. Then dEb displays on the keypad.
Action and Reset
Action level When Pr.07-13 is not 0, and the DC bus voltage is lower than the level of dEb.
Action time Immediately act
Fault treatment parameter N/A
Reset method
Auto
When Pr.07-13=2 (dEb with auto-acceleration / auto-deceleration, the
drive outputs the frequency after the power is restored): dEb is
automatically cleared.
Hand
When Pr.07-13=1 (dEb with auto-acceleration / auto-deceleration, the
drive does not output the frequency after the power is restored): The
drive stops when dEb acts and the rotation speed becomes 0 Hz, then
the drive can be reset manually.
Reset condition
Auto: The fault is automatically cleared.
Hand: When the drive decelerates to 0 Hz.
Record Yes
Cause Corrective Actions
Unstable power source or the
power is off
Check the power system.
There is any other large load
operates in the power system 1. Replace power system with a larger capacity.
2. Use a different power system from the large load system.