Installation manual

Diagnostics and troubleshooting
154 S1A53838 09/2011
Pre-alarm Conditions
Pre-alarm Codes
The pre-alarm codes are displayed, flashing on the embedded HMI, in the following order from left to right: C,
P, L, H.
If two or more troubles arise simultaneously, one of the following pre-alarm codes appears and flashes:
CP, PL,
CPL.
Code Pre-alarm Description
C
[Current alarm]
• The drive is at current limit.
• For more information, refer to parameter F601 (see page 69) and F185 (see page 74).
P
[DC bus alarm]
• The drive is approaching an overvoltage detected fault due to a high supply line, regenerative
motor braking, or a combination of these. For more information, refer to parameters F305
(see page 128
) and F626 (see page 128).
L
[Motor overload al]
• The motor overload timer has reached or exceeded 50% of its detected fault level.
H
[Drv overheat alrm]
• The drive is approaching an overheating fault detection.