9
3-1. Module specifications
Model name
Item
FA-TH16YRA20SL
Number of I/O points
I/O device numbers
16 points, Y0 to YF
Insulation type
Relay
Rated switching voltage/current
Voltage: 24 VDC, 200 VAC (50/60Hz), Current: 2A/1 contact (resistance load, COSø=1)
(* 4)
Max. number of contacts simultaneously ON
100
％
(When UL standard conformity the max switching current is 1.5A)
Min. switching load
DC5V
1mA
Max. switching load
AC270V
，
DC150V
Max. switching frequency
1,800 times/hr (ON 1 second or longer, OFF 1 second or longer)
Mechanical life
20,000,000 times or more
Electrical life
100,000 times or more at rated switching voltage and current
100,000 times or more at 200 VAC 1.5A (COSø=0.7), 240 VAC 1A (COSø=0.7)
100,000 times or more at 200 VAC 1A (COSø=0.35)
100,000 times or more at 24 VDC 1A (L/R=7ms), 100 VDC 0.1A (L/R=7ms)
Response
time
OFF
→
ON
10 ms or less (exc. PLC response time)
ON
→
OFF
12 ms or less (exc. PLC response time)
Common method
16 contacts
independent common
External supply power
24 VDC ±10% (ripple factor within 5%, CLASS 2)
Unit consumption current
Approx. 90mA when 24 VDC (not inc. PLC consumption current)
Withstand voltage/insulation resistance
Between inputs/outputs: 2500 VAC 1 minute,
between contacts: 750 VAC 1 minute, 10M
Ω
or higher
Withstand noise
Simulator noise 1500 Vp-p, noise width 1
μ
s
(based on noise simulator with noise frequency of 25 to 60Hz)
Operation indication
LED indicator display when power ON, inputs ON
Sockets
Yes (relay device exchange possible)
Device exchange count
50 times
Device mixing
Device mixing possible
Terminal
block
Terminal screw
M3.5 screw, Number of terminals
：
36P, Pitch of 8mm,
Applicable wire,
Tightening torque
AWG20 to 14: 0.5 to 2.0mm
2
68 to 92N
･
cm(7 to 9kgf
･
cm, 6.1 to 8lbf
･
in,
UL standard conformity tightening torque : 80N
･
cm, 7.08 lbf
･
in)
Module
mounting
Mounting screws
M4 × 35mm or greater
Tightening torque range: 78 to 118N·cm (8 to 12kgf·cm, 7 to 10lbf·in)
DIN rail
Applicable DIN rail: TH35-7.5Fe, TH35-7.5Al (IEC60715 compliant)
Weight About
390g
* 4: Evaluation for UL certification is conducted under resistance load conditions.
3-2. Characteristics data of used relay
3-2-1
．
Maximum value of switching capacity
3-2-2
．
A contact life curve
3
．
PERFORMANCE SPECIFICATIONS
Note 1
：
When used in applications having a high switching frequency, the life of the relays is a problem. For this reason, we recommend studying use of
triac output terminal module.
Note 2
：
The relay life curves show performance values and are not guaranteed values. For this reason, consider providing sufficient margin for relay life
curves.
Note 3
：
The life of relays changes considerably by the type of load and the characteristics of its inrush current. In particular, inrush current causes fusing
of contacts. For this reason, take rush current as well as steady current into consideration.
（
a
）
Inductive load
When an inductive load such as a magnetic switch or solenoid is shut off, a high electromotive force occurs between contacts to generate arc
discharge. In particular, attention is required as life is shortened when the power factor is small. Also, when power is turned ON, fusing of
contacts must be taken into consideration as a rush current of 5 to 15 times the regular current flows.
（
b
）
Lamp load
Fusing of contacts must be taken into consideration in lamp circuits as a rush current of 10 to 15 times the regular current flows.
（
c
）
Capacitive load
When the load circuit contains a capacitor, an inrush current of 20 to 40 times the regular current sometimes flows, so fusing of contacts must
be taken into consideration. Attention is also required to the wire capacitance when routing wiring a long distance.
