MG 47 Series - Wiring DC Output; Wiring Alarm Output

1947LHZ EM-9517-B Rev.10
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
1.6.5 WIRING DC OUTPUT
Voltage or current is output depending on the specied DC output code.
IMPORTANT
• Connect load resistance within the specications.
• 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
+–
78
Ground
(resistance
100 ohms or less)
DC output
1.6.6 WIRING ALARM OUTPUT
Two or four alarm contacts are output depending on the specied alarm output code.
IMPORTANT
• Connect load within the specications.
• The mechanical lifetime of the relays is 5,000,000 operations.
• With inductive load such as an external relay or a motor, insert a CR 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 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 outputH output