— 11-5 —
11.2. List of Alarm and warning
11.2.1. Normal State
The table below shows the condition of the System when the input SVON (Servo on) is activated
and the System is ready for the operation command, the System.
◊ For the execution of operation, clear the input STP (Stop).
Table 11-3: The condition for command acceptance
POWER
LED
7-seg.
LED
Output
DRDY
Output
WRN
Output
OTPA
and
OTMA
Output
SVST
Motor condition
Green
Close Closed Closed Closed Servo-on
！
Caution : The outputs DRDY (Driver ready), WRN (Warning) and OTPA/OTPM
(Travel limit) are normally closed and they open for reporting
abnormality.
◊ The shipping set of the outputs WRM and OTPA/OTMA is
negative logic.
If the Motor does not move even no alarm or warning is reported, the System may be in the
condition shown in Table 11-4 below.
◊ In the condition shown in the table below, the Motor gets in the servo-off state and the
dynamic brake is functioning to brake the Motor.
◊ When the initialization of the CPU takes longer than 10 seconds at the power-on, the
control circuit is not functioning normally. Refer to “11.3.1. CPU Error” for the cause
and remedy.
Table 11-4: condition when the Motor does not move even in normal state
POWER
LED
7-seg.
LED
Output
DRDY
Output
WRN
Output
OTPA
and
OTMA
Output
SVST
Motor
condition
System
condition
Cause Remedy
Off Off Open Open Open Open Servo-off
The power is
not turned on.
The power is not
turned on.
Turn on the
power
Orange Off Open Open Open Open Servo-off
Initializing
CPU
The power is on,
but the CPU is
being initialized.
Wait for about
3 seconds
The input SVON
is not activated.
Activate the
input SVON.
Green
Closed Closed Closed Open Servo-off Servo-off
The input SVON
is on, but the servo
is not on yet.
Wait until the
output SVST
closes.
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