Toshiba 6F3B0250, PROSEC T1 T1S user manual Application precautions for output signals

6F3B0250

3. I/O Application Precautions

3.2 Application precautions for output signals

!WARNING

!CAUTION

Configure emergency stop and safety interlocking circuits outside the T1/T1S. Otherwise, malfunction of the T1/T1S can cause injury or serious accidents

1.Turn on power to the T1/T1S before turning on power to the loads. Failure to do so may cause unexpected behavior of the loads.

2.Configure the external circuit so that the external 24 Vdc power required for the transistor output circuits and power to the loads are switched on/off simultaneously. Also, turn off power to the loads before turning off power to the T1/T1S.

3.Install fuses appropriate to the load current in the external circuits for the outputs. Failure to do so can cause fire in case of load over-current.

(1)2 points of solid-state output

The leading 2 points of output (Y020 and Y021) are solid-state outputs, transistors on the DC input types and triacs on the AC input types.

These solid-state outputs are suited for frequent switching applications.

Note that the specifications of the solid-state outputs and other outputs (relays) are different.

(2)Switching life of output relays

Expected relay life is more than 100,000 electrical cycles at rated maximum voltage and current, and more than 20 million mechanical cycles. The expected contact life (electrical cycles) is shown on the table below.

	Load voltage	Load	Expected life
		current	(thousand)
AC	110 Vac,	2 A	340
load	COSf = 1	1 A	720
		0.5 A	1,600
	110 Vac,	2 A	150
	COSf = 0.7	1 A	320
		0.5 A	700
	220 Vac,	2 A	220
	COSf = 1	1 A	500
		0.5 A	1,100
	220 Vac,	2 A	100
	COSf = 0.7	1 A	210
		0.5 A	460

	Load voltage	Load	Expected life
		current	(thousand)
DC	24 Vdc,	2 A	280
load	L/R = 0 ms	1 A	600
		0.5 A	1,300
	24 Vdc,	2 A	60
	L/R = 15 ms	1 A	150
		0.5 A	350
	48 Vdc,	1 A	200
	L/R = 0 ms	0.5 A	420
	48 Vdc,	0.5 A	130
	L/R = 15 ms	0.2A	420
	110 Vdc,	0.5 A	200
	L/R = 0 ms	0.2 A	550
	110 Vdc,	0.2 A	150
	L/R = 15 ms	0.1 A	350

Basic Hardware and Function 65

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