Omron M1 Series User Manual

Code Name Overview
Braking resistor overheating The estimated temperature of the braking re-
sistor coil has risen above the permissible
temperature.
to
Motor 1, 2 overload The motor temperature is calculated from the
output current of the inverter, and the motor
temperature has reached the trip level.
RS-485 communications error An error in RS-485 communications
Speed mismatch (Excessive speed devia-
tion)
The deviation in the speed adjuster (devia-
tion between the speed command and speed
estimated value/detected speed) continued
for more than the set time (d22) outside the
set range (d21).
Positioning error During synchronous control, the position de-
viation exceeded the set value of excessive
deviation (10 times of d78).
Current Input Wire Break Detection The input terminal [AI2] (AII) is disconnected.

Minor Alarm Selectable Events
The following events can be set to minor alarms.
Code Name Overview
Excessive positioning deviation The deviation between the current reference
position and current feedback position ex-
ceeds the detection value
Motor overload early warning Early warning before the occurrence of mo-
tor overload alarm.
Cooling fin overheating early warning Early warning before the occurrence of cool-
ing fin overheat tripping.
Lifetime alarm Any one of the main circuit capacitor used in
the inverter, the capacitors on the printed cir-
cuit board, and the cooling fan has reached
the end of its life.
Reference loss The analog frequency reference is discon-
nected.
PID warning output Warning related to PID control (Absolute val-
ue warning/Deviation warning).
Low torque detection The output torque continued to be below the
low torque detection level for more than the
time set in the timer.
Motor overheat detected by thermistor (PTC) Temperature detection by the PTC thermistor
of the motor.
Inverter life (Cumulative operation time of
motor)
The cumulative operation time of motor has
reached the set maintenance time.
Inverter life (Number of startups) The number of startups has reached the set
number of maintenance.
7 Other Functions
7-109
M1 Series Standard Type User's Manual (I669)
7-8 Functions Related to Protection, Warning and Various Output Signals
7
7-8-26 Light Alarm Selection

Omron M1 Series Specifications

General

Brand	Omron
Model	M1 Series
Category	Inverter
Language	English