SRTj
SRTj
80
Precautions
Refer to the
CompoBus/S Operation Manual (W266)
before
using
the T
erminal.
The following precautions are the same for all SRT1 Terminals.
Refer
also to the precautions specified for individual T
erminals.
General Safety Precautions
Wiring
Turn
OFF the Unit before wiring the Unit and do not remove the ter
-
minal
block cover or touch the terminal block while the
Unit is turned
ON, otherwise an electric shock may occur.
Do
not impose any voltage other than the rated voltage on the input
terminal.
Doing so may result in damage to the Unit or cause the Unit
to
malfunction.
Relay I/O Type
SRT1-ROC08
and SR
T2-ROC16
Do not connect the Unit to loads operating at any voltage or consuming
a total current exceeding the permissible switching
voltage
or current of the Unit. Doing so may result in the faulty insulation,
contact
weld, or faulty contact of the relays, or damage to the relays,
or
cause the relays to malfunction or burn.
The
life of a relay varies with the switching condition. T
est the relays
under
the actual operating conditions before using the relays within
the permissible switching frequency
. The use of deteriorated relays
may
result in the faulty insulation of the relays or cause the relays to
burn.
Do
not use the Unit in places with inflammable gas. Doing so may
result in a fire or explosion due to the heat of the relays or a spark
from the relays when they are switched.
Transistor, Power MOS FET, and SSR I/O Types
SRT1-OD04, SRT2-OD08, SRT2-OD16, SRT1-OD16P,
SRT1-ROF08,
and SR
T2-ROF16
Do
not connect the Unit
to loads consuming a total current exceed
-
ing
the rated output current of the Unit. Doing so may damage the
output element and a short or open-circuit malfunction may result.
If
the Unit is connected to a DC
inductive load, connect a diode to the
Unit to protect the Unit from counter-electromotive voltage, otherwise
the counter-electromotive voltage may damage the output ele
-
ment
and a short or open-circuit malfunction may result.
Correct Use
Replacing Relays
Use the relay removal tool to the left of the screw terminals to
replace relays.
Turn OFF the Unit to replace relays, otherwise an electric shock
may
occur or the Unit may malfunction.
Installation Environment
Do
not install the Unit in the following places. Doing so may result in
damage
to the Unit or cause the Unit to malfunction.
•
Places with direct sunlight.
• Places
with ambient
temperature ranges not within 0°C to 55
°C.
• Places with rapid temperature changes resulting in condensa-
tion
or relative humidity ranges not within 10% to 90%.
•
Places with corrosive or inflammable gas.
• Places with excessive dust, salinity
, or metal powder
.
•
Places with vibration or shock af
fecting the Unit.
•
Places with water
, oil, or chemical sprayed on the Unit.
Screw Tightening Torques
Tighten
all screws of the
Unit properly
, otherwise the Unit may mal
-
function.
• T
ighten each terminal screw to a torque of 0.6 to 1.18 N S m (6.2
to
12.0 kgf
S cm).
• Tighten
each
mounting screw to a torque of 0.6 to 0.98 N S m (6.2
to
10.0 kgf
S cm).
Terminal screws
Mounting screws
Cleaning
Use
alcohol or benzine to
clean the surface of the Unit. Do not use
paint
thinner to clean the surface, otherwise the surface will be dam
-
aged
or discolored.
Handling
Do
not drop the Unit or shock or vibrate the Unit excessively. Doing
so
may result
in damage to the Unit or cause the Unit to malfunction.
Disassembling, Repairing, and Modifying
Do
not disassemble, repair
, or modify the Unit, otherwise an electric
shock
may occur or the Unit may malfunction.