Yaskawa CIMR-PUxA User Manual

Page 147

EF8

External fault (input terminal S8)
External fault at multi-function input terminal S8.

EoF

Emergency Override Forward Run

Cause

Possible Solution

The multi-function digital input for

EmergOverrideFWD (H1-oo = AF) has

been closed.

Open H1-oo = AF if the emergency condition is no longer present

Eor

Emergency Override Reverse Run

Cause

Possible Solution

The multi-function digital input for

EmergOverrideREV (H1-oo = B0) has

been closed.

Open H1-oo = B0 if the emergency condition is no longer present

FbH

Excessive PID Feedback
The PID feedback input is higher than the level set to b5-36 for longer than the time set to b5-37, and b5-12

is set to 1 or 4.

FbL

PID Feedback Loss
The PID feedback input is lower than the level set to b5-13 for longer than the time set to b5-14.

HCA

Current Alarm
Drive current exceeded overcurrent warning level (150% of the rated current).

LT-1

Cooling Fan Maintenance Time
The cooling fan has reached its expected maintenance period and may need to be replaced.

Note:

An alarm output (H2-oo = 10) will only be triggered if both (H2-oo = 2F and

H2-oo = 10) are set.

LT-2

Capacitor Maintenance Time

The main circuit and control circuit capacitors are nearing the end of their expected performance life.

Note:

An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.

LT-3

Soft Charge Bypass Relay Maintenance Time
The DC bus soft charge relay is nearing the end of its expected performance life.

Note:

An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.

LT-4

IGBT Maintenance Time (50%)
IGBTs have reached 50% of their expected performance life.

Note:

An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.

Heatsink Overheat
The temperature of the heatsink exceeded the overheat pre-alarm level set to L8-02 (90-100 °C). Default

value for L8-02 is determined by drive capacity (o2-04).

oH2

Drive Overheat Warning
“Drive Overheat Warning” was input to a multi-function input terminal, S1 through S8 (H1-oo= B).

oH3

Motor Overheat
The motor overheat signal entered to a multi-function analog input terminal exceeded the alarm level (H3-02,

H3-06 or H3-10 = E).

oH4

Motor Overheat Fault (PTC Input)
• The motor overheat signal to analog input terminal A1, A2, or A3 exceeded the fault detection level.
• Detection requires setting multi-function analog inputs H3-02, H3-10, or H3-06 to E.

Cause

Possible Solution

5.3 Alarm Detection

YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide

147

Troubleshooting