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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 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 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
COS
f
= 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
COS
f
= 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
COS
f
= 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
COS
f
= 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/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.
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net