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B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
2
3
t
y
p
e
2
5
t
y
p
e
2
3
t
y
p
e
2
5
t
y
p
e
7.1.8. Over Travel Limit
7.1.8.1. Hardware Over Travel Limit Sensor (DTP and OTM) Input
l In case of the B3 and 23 Driver Units, this function is available to the Input/Output combination
of TY3, TY4 and TY7 types.
l Use the OTP and OTM inputs to provide off-limits zone for the Motor rotation range.
l If the OTP input is activated, the Motor will stop immediately in the servo lock state. The Motor
may be rotated counterclockwise only.
l If the OTM input is ON, the Motor will stop immediately in the servo lock state. The Motor may
be rotated clockwise only.
* The shipping set of polarity of the OTP and OTM input ports is the normally open contact. It
may be changed to the normally closed contact. (Refer to the section of the AB parameter.)
l The parameters HT and TO specify the state of alarm when the over travel limit activates as
shown Table 7-2 below.
Table 7-2: Alarm
Over Travel Limit
Hardware over travel limit
Software over travel limit
Figure 7-10
OTP input or
OTM input
OVER output
！ Caution: When the OTP or OTM input is activated in the middle of Home Return
Parameter
setting
(ü : shipping set)
ON
OFF
Closed
Open
operation, the Motor exceptionally decelerates and reverses its motion
normally without interrupting the operation. Refer to "6.2.1.2. Setting
Home Position by Home Return" for the detail.
— 7-9 —
7.1. General Operation and Function
Alarm output
DRDY
HT0
Not available Not available
HT1
Open
ü
HT2
Not available
TO1
Open
TO2
ü
Not available
10 ms max.
7.1.8. Over Travel Limit
Indicator on
front pannel
OVER
F3
Not available
Closed
Not available
F2
Closed
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Troubleshooting
