3 Connection
−
22
−
Emergency stop circuit connection example when the emergency
stop function is used
Detection of
emergency stop
An emergency stop will be actuated in the following conditions:
•
The 24 VDC input (+) to the logic power supply has been cut off.
•
The circuit has been cut off between the emergency stop output terminal and
relay.
•
The emergency stop button on the pendant has been pressed when the
pendant is connected.
•
The overcurrent protection fuse in the pendant has blown.
Stop category
(EN 60204-1)
Category 0 (Non-controlled stop)
Action to be taken
upon emergency
stop
The motor power will be forcibly cut off by a hardware circuit, not by a CPU
command, to stop the motorized actuator (= the motor will coast to a stop). If the
motorized actuator is equipped with an electromagnetic brake, the
electromagnetic brake will be switched to the holding mode.
Teaching pendant (sold separately)
Over current
protection fuse
Controller
Power supply
input terminal
Power supply
input terminal
PENDANT/PC
Pendant switch
Emergency stop button
SB3
Emergency stop
cancellation
button SB1
Emergency stop
button SB2
Relay KA1
FU1
FU2
6
5
EMG
L
N
0 V
0 V
24 VDC
AC
ESMC-A2
,
ESMC-C2
FU1
FU2
ESMC-K2
24 VDC
0 V
•
KA1 and SB2 must use EN Standard parts.
•
KA1: Rating 24 VDC 30 mA
•
In the figure, the pendant switch is turned ON.
+
+
-
-
Emergency stop
output terminal
Logic power
supply terminal
-
+
Note
•
When using the emergency stop button (SB3) on the teaching pendant, always turn ON
the pendant switch on the controller. If the pendant switch is OFF, the emergency stop
button (SB3) will not be enabled.
•
Set the pendant switch to OFF before disconnecting the teaching pendant. If the
pendant is disconnected while the switch is set to ON, the controller will come to an
emergency stop.
•
Release the emergency stop
To cancel the emergency stop of the controller, follow the steps below:
1.
Confirm that safety will be ensured when the motorized actuator resumes operation.
2.
Turn the emergency stop button (SB2 or SB3) OFF.
3.
Turn the emergency stop cancellation button (SB1) ON.
The emergency stop of the controller is cancelled.
Summary of Contents for EZ limo ESMC-A2
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