Toshiba PROSEC T1 T1S, 6F3B0250 3.2 Application precautions for output signals

6F3B0250
Basic Hardware and Function 65
3. I/O Application Precautions
3.2 Application precautions for output signals
(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 t he AC input types.
These solid-st ate outputs are suited for frequent switching applicat ions.
Note that the specifications of the solid-st at e outputs and other out put s ( relays) are
different.
(2) Switching lif e of output r elays
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 volta
g
e Load
current Expected life (thousand) Load volta
g
e Load
current Expected life (thousand)
AC 110 Vac, 2 A 340 DC 24 Vdc, 2 A 280
load COSf = 1 1 A 720 load L/R = 0 ms 1 A 600
0.5 A 1,600 0.5 A 1,300
110 Vac, 2 A 150 24 Vdc, 2 A 60
COSf = 0.7 1 A 320 L/R = 15 ms 1 A 150
0.5 A 700 0.5 A 350
220 Vac, 2 A 220 48 Vdc, 1 A 200
COSf = 1 1 A 500 L/R = 0 ms 0.5 A 420
0.5 A 1,100 48 Vdc, 0.5 A 130
220 Vac, 2 A 100 L/R = 15 ms 0.2A 420
COSf = 0.7 1 A 210 110 Vdc, 0.5 A 200
0.5 A 460 L/R = 0 ms 0.2 A 550
110 Vdc, 0.2 A 150
L/R = 15 ms 0.1 A 350
!WARNING
!CAUTION
Configure emergency stop and safety interlocking circuits outside the T1/T1S.
Otherwise, malfunction of the T1/T 1S can cause inj ury or serious accidents
1. Turn on power to t he T1/T1S before turning on power to the loads. Failure
to do so may cause unexpected behavior of t he loads.
2. Configure the external circuit so that the external 24 Vdc power req uir ed
for the transistor output circuits and power to the loads are sw itched on/off
simultaneously. Also, turn off power to the loads before turning off power to
the T1/ T1S.
3. Install fuses appropriate t o t he load cur rent in the external circuits for the
outputs. Failur e to do so can cause fire in case of load over-current .
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