Owner manual

36
6.3 Alarms, Causes and Actions
(1) Alarms relating to the simple absolute unit (ACON, PCON)
Code Error Cause/action Alarm reset
0B6 Phase-Z
detection
timeout
Cause:
Phase Z could not be detected within the phase-Z output period of
the simple absolute unit.
[1] When the detail code is “H’0001”
Pole sensing + magnetic pole check
[2] When the detail code is “H’0002”
Operation after reversing, following home return and
push-motion operation
Action:
• Check the wiring condition of the motor relay cable.
• Check the wiring condition of brake cable, and turn on/off the
brake reset switch to see if “click” sound is heard.
• Check if the mechanical parts are properly assembled.
• Move the actuator away from the mechanical end and reconnect
the power.
• If the load is normal, turn off the power and try moving it manually
to check the slide resistance.
{
Operation-
cancellation
level
0E5 Encoder
receive error
Cause:
[1] The controller is powered up before the simple absolute unit
when the 24-V power supply is turned on.
[2] When the detail code is “H’0001”
The simple absolute unit cannot communicate properly due to
noise, etc.
[3] When the detail code is “H’0002”
The controller cannot communicate properly with the simple
absolute unit because the communication line in the encoder
cable is disconnected.
Action:
[1] Make sure the simple absolute unit is powered up before (or
simultaneously with) the controller.
[2] Change the installation location of the controller. Implement
noise measures such as installing a FG, noise filter, clamp filter,
etc.
[3] Check the connectors on the encoder relay cable between the
controller and simple absolute unit for looseness. Or, replace
the cable.
X
Cold-start
level
0E8 Phase A/B
open
detection
0E9 Phase A open
detection
0EA Phase B open
detection
Encoder signals cannot be detected properly.
Cause:
[1] The connectors on the encoder relay cable are loose or
disconnected.
[2] Piano switch 4 is set wrongly.
Action:
[1] Check the connectors for looseness and disconnection.
[2] Check the switch setting by referring to 5.1.1, “Piano Switch
Settings.”
X
Cold-start
level