Panasonic MINAS-BL GP series Instructions Manual - Protective Function
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35
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34
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Display on
the Digital
key pad
Trip
number
(RS485)
Protective
function
Causes
Countermeasure
8
* Overcurrent
error
(E-OC)
The motor trips when the
motor current exceeds
specified current.
[1] Excessive acceleration/
deceleration setting is pos-
sible. Set longer accelera-
tion/ deceleration time.
[2] Failure of internal circuit is
possible.
9
Overheat error
(E-OH)
The motor trips when the tem-
perature in control section rises
above specified value.
Approx 105 ℃
Check the ambient tempera-
ture and cooling condition of
motor. Check the load factor.
If the ambient temperature is
low enough, and the protec-
tion occurs soon after power-
on, failure is possible.
10
External
forced trip
(E-OL)
The motor trips when external
forced trip input turns on.
Turn off external forced trip
input, and reset tripping.
11
Setting change
warning
(CAU)
It occurs when parameter
copying function on Digital key
pad is completed normally.
Also,when STOP key on Digital
key pad is pressed, the motor
trips and stops.
It is not abnormal. Execute trip
reset.
12
RS485
communica-
tion error
(E-485)
The motor trips when
communication error of RS485
communication function
occurs.
Check for noise problem in
the vicinity. (See "Information
− Communication" on P.68 for
detail.)
20
Command
execution
error
(E-rU)
The motor trips when data
is abnormal in executing an
operation instruction (setting
speed is 0, and travel distance
is 32767 rotations or more).
Check the setting of param-
eter.
21
Homing error
(E-HO)
The motor trips when homing
speed is 0, or when home can-
not be detected although the
motor shaft rotates more than
parameter (Pr43) in homing
operation, or when setting of
sensor is abnormal
Investigate the setting of
parameter, home sensor, and
wiring of home sensor.
22
* Present
position
overflow error
(E-OF)
The motor trips after homing is
completed, if present position
exceeds ±32767 rotations.
Check the setting of
parameter. (It can be made
ineffective by Pr4A.)
Display on
the Digital
key pad
Trip
number
(RS485)
Protective
function
Causes
Countermeasure
23
Hardware limit
error (E-LT)
The motor trips after homing
is completed, if hardware limit
sensor is detected.
Check the installation of sen-
sor, and setting of parameter.
—
Digital key pad
communica-
tion error
(E_Cn)
It occurs when the Digital key
pad and motor cannot com-
municate normally. (This is a
trouble on Digital key pad side.
It does not affect motor opera-
tion.)
It can be cleared by recon-
necting the Digital key pad.
Make sure that Digital key
pad and motor are connected
normally.
90
* User
parameter
error
(E-UPr)
Parameter data saved in
EEPROM is abnormal.
Check all parameters again
and set them again. If this
protection works frequently,
failure is possible.
91
* System
parameter
error
(E-SPr)
Internal parameter data saved
in EEPROM is abnormal.
Failure is possible.
1
* Sensor error
(E-CS)
The motor trips when trouble of
CS sensor signal is detected.
[1] Malfunction due to external
noise is possible.
Investigate for noise
source in the vicinity and
eliminate such source.
[2] Internal circuit may be in
failure.
Other
numbers
* System error
(Err)
The motor trips when trouble
of control microcomputer is
detected.
0
Normal
condition
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—
When any of protective functions marked with “ * ” operates, trip reset by the procedure of [1] on P.32.
1000
100
10
100
110
120
130
140
150
Overload protection time characteristics
Torque (%)
Time (s)
When any of protective functions marked with “ * ” operates, trip reset by the procedure of [1] on P.32.