New Cosmos Electric KS-7D, Instruction Manual

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6. Wiring
The knockout holes for cable entry are provided
on the back and bottom of the unit, and can be
removed using a nipper.
Use a shielded cable (with 0.5 to 1.25mm
2
wires)
up to 500m in length with an outside diameter of
10.5mm or less.
NO: Normally Open
NC: Normally Closed
P +
Power supply, 24 VDC
N -
E Earth terminal for grounding the detector
Signal
+
Analog output, 4-20mA DC
-
ZA1
1
st
stage alarm relay contact
(Dry NO or NC)
ZA2
2
nd
stage alarm relay contact
(Dry NO or NC)
TA Fault alarm relay contact (Dry NO or NC)
COM Common
D
Not used
C
NO contacts
-
+
R
S
C D
COM
Signal
E
N
P
+ -
ZA2
ZA1 TA
▪
Remove any power source during wiring work to prevent electric shocks.
▪
After wiring is completed, close the detector
’s cover to prevent electric shocks.
WARNING
▪
New Cosmos is not responsible for the cost or any damage resulting from controlling
external equipment (e.g. interlock) by using the carbon monoxide concentration outputs
(e.g. analog output, alarm relay contact output) from this product.
▪
Connect wires to their corresponding terminals by referring to the marking on the
terminal block.
▪
Keep the connection cable away from the electrical power line.
▪
When using with external devices, isolate the product
’s 4-20mA analog output from
power lines of external devices in order to prevent inflow current and noise.
CAUTION
Knockout hole on the bottom
Knockout hole
on
the back