Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 239

Screw-less Clamp Terminals
Dimensions (Same for DRT2-OD16SL(-1) and DRT2-OD16SLH(-1))
Load Short-circuit Protection: DRT2-OD16SLH and DRT2-OD16SLH-1
218
Normally, when the output contact (OUT) turns ON, the transistor turns ON,
and output current (Iout) flows, as shown in Fig. 1.
If the current limit (Ilim) is exceeded when there is an overload in the output
current (Iout) or when a load short-circuit occurs, as shown in Fig. 2 and 3, the
output current (Iout) will be limited. Then, if the output transistor junction tem-
perature (Tj) reaches the thermal shutdown temperature (Tstd), the output will
be turned OFF to prevent damage to the transistor, the Load Shorted Flag will
be turned ON, and the indicator will light red.
In automatic recovery mode (Fig. 2), the short-circuit protection status will be
automatically cleared and the output current will start to flow again when the
transistor's shutdown temperature (Tj) drops to the reset temperature (Tr).
In manual recovery mode (Fig. 3), the short-circuit protection status will be
held even when the transistor's shutdown temperature (Tj) drops to the reset
temperature (Tr), and recovery will occur when the Unit is reset by turning
OFF the I/O power supply or the Unit's power supply.
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Section 5-7
(mm)