20
47LLC OPERATING MANUAL EM-9505-B Rev.4
1.6.6 WIRING DC OUTPUT
Voltage or current is output depending on the specified DC output code.
IMPORTANT
•
Connect load resistance within the specifications.
•
Do not connect anything with no-DC-output type.
•
Take measures to reduce noise as much as possible, e.g. by using shielded twisted pair wires for the output signal.
Ground the output shield to the most stable earth to prevent noise troubles.
DC output
+
–
7
8
Ground
(resistance
100 ohms or less)
DC output
1.6.7 WIRING ALARM OUTPUT
Two or four alarm contacts are output depending on the specified alarm output code.
For four alarm contacts, photo MOSFET relays without mechanical life time are connectable.
IMPORTANT
•
Connect load within the specifications.
•
The mechanical lifetime of the relays is 5,000,000 operations.
•
With inductive load such like an external relay or a motor, insert an RC circuit (for AC or DC power), a diode (for DC
power) or a varistor (for AC or DC power) in parallel to protect the contacts and eliminate noise.
Alarm output code: 1, 3
Alarm output code: 2
15
16
17
18
19
20
HHa
Ha
Hc, HHc
La
LLa
Lc, LLc
H
output
LL
output
L output
HH output
15
16
17
18
19
20
Ha
(NO)
Hb
(NC)
Hc
(COM)
La
(NO)
Lb
(NC)
Lc
(COM)
L output
H output