Application Examples; Safety Door (Emergency Stop) - Phoenix Contact ELR H5-ES-SC- 24DC/500AC-0,6 Manual Del Usuario

Status
External error
in activation or I/O
(maintenance
requirement, NE44)
1)
Bridge between the terminals "RES" and "AUT" /
4.2.1. Error acknowledgment
Two different options are available for error acknowledgement:
Manual (Reset button):
An acknowledgement is triggered by actuating the Reset button on the device front side.
Manual (remote acknowledgement):
A remote acknowledgment operating point can be realized by connecting a button (N/O contact) between
the MAN and RES terminals.
An acknowledgement is triggered if a positive edge is identified at the MAN input. If a negative edge is not
identified after approx. 2 s, the hybrid motor starter adopts the error status again since the possibility of a
manipulation or a defect in the acknowledgement circuit cannot be ruled out.
The RES terminal provides the voltage for a reset.
In variants with the rated control supply voltage of 24 V DC, this is 24 V DC and in the case of
230 V AC, it is a special system voltage.
4.2.2. Feedback
If the hybrid motor starter detects an error, the feedback relay is activated, i.e. the N/O contact is closed
or the N/C contact is opened.
The feedback serves in signaling and is not a part of the safety chain. It is thus not included in the safety
monitoring.

5. Application examples

5.1. EMERGENCY STOP
Integrating a hybrid motor starter into an EMERGENCY STOP chain is pictured in Fig. 3 (page 50).
Here, the control voltage supply is switched off via the safety relays, as soon as the EMERGENCY STOP
button is actuated.
Switching off the control voltage supply with a controlled motor always results in wear in
the hybrid motor starter.
This switch should only be used if no more than 10,000 shutdowns can be expected over the entire
lifespan system.
If the switch-off is performed, for instance, from a "safe controller" with semiconductor outputs, the
residual voltage must be < 5 V DC. Interruptions ≤ 1 ms are filtered.

5.2. Safety door (EMERGENCY STOP)

In applications where the safety switch-off is a normal operating mode such as in the case of safety door
or two-hand applications, a circuit as per fig.4 (page 51) should be used.
In this application, the control current circuit is switched and not the control supply voltage.
If the switch-off is performed, for instance, from a "safe controller" with semiconductor outputs, the
residual voltage must be < 5 V DC. Interruptions ≤ 3 ms are filtered.
16
Description
Phase failure:
Phase failure with pending control signal
• Error in reverse running.
• Error in forward running.
Blocking: The max. measurable motor current is
exceeded for more than 2 s.
• Error in reverse running.
• Error in forward running.
LED: PWR ERR L R Error acknow-
Green Red Yellow
2)
No other measures necessary
ledgement
B B E A Automatic
B B A E Automatic
E B B A Manual
E B A B Manual
2)
2)