M-system 47DV Operating Manual page 7

■ B
• Alarm Output : N.O. contact, 4 points
15
HHa
16
Ha
17
Hc, HHc
18
La
19
LLa
20
Lc, LLc
• RS-485 / Modbus RTU
11
T1
12
T2
Term.
Resist.
13
T3
14
T4
*1. When the device is located at the end of a transmission line via twisted-pair cable,
(when there is no cross-wiring), close across the terminal 12 – 13 with a leadwire.
When the device is not at the end, no shortcircuit wire is required.
HH OUTPUT
H OUTPUT
L OUTPUT
LL OUTPUT
Shielded Twisted-pair Cable
+
To other
Modbus devices
–
Jumper *
1
• Alarm Output : SPDT contact, 2 points
15
Ha (NO)
16
Hb (NC)
17
Hc (COM)
18
La (NO)
19
Lb (NC)
20
Lc (COM)
47DV
H OUTPUT
L OUTPUT
■ Relay Protection
• AC Powered
Inductive
Load (Coil)
Varistor or
LOAD CR Circuit
• DC Powered
Inductive
Load (Coil)
Diode, Varistor or
LOAD CR Circuit
EM-9501-B Rev.6 P. 7 / 34