34
The controller is designed for installation in an enclosure which provides adequate
protection against electric shock. Local regulations regarding electrical installation
should be rigidly observed. Consideration should be given to prevention of access
to the Power Supply terminals by unauthorized personnel.
Caution
DC Linear Current / Voltage Output
The DC Linear (0/4-20 mA) Current or (0-5/10 V) Voltage output is also available at Terminal 6 (+)
and Terminal 4 (-) if the Output-1 is configured for DC Linear.
Figure 12.3 (c)
6
5
4
Line
Neutral
12 (L)
13 (N)
2 Pole
Isolating Switch
Fuse
Power Supply
Terminal
Terminating Resistor
Screened Cable
Twisted
Wire Pair
(100 to 150 Ohms)
15 (B-)
HOST
B-
B+
Master Device
Serial Comm.
Terminals
14 (B+)
OUTPUT- 2
(Terminals : 7, 8, 9)
OUTPUT- 3
(Terminals : 16, 17, 18)
The Output-2 and Output-3 are available through plug-in modules. The modules are factory configured for either Relay / SSR
or DC Linear Voltage or DC Linear Current. The connection descriptions are the same as those described for Output-1.
POWER SUPPLY
(Terminals : 12, 13)
Figure 12.4
As standard, the controller is supplied with power connections suited for 85 to 264 VAC. Use well-insulated copper conductor
2
wire of the size not smaller than 0.5mm for connections. Connect Line (Phase) to terminal 12 and the Neutral (Return) to
terminal 13 as shown in Figure 12.4. The controller is not provided with fuse and power switch. If necessary, mount them
separately. Use a time lag fuse rated 1A @ 240 VAC.
For DC Supply, connect Signal (+) & Common (-) to controller terminals 12 & 13, respectively.
SERIAL COMMUNICATION PORT
(Terminals : 14 , 15)
(Applicable if the Option plug-in module for RS485 Serial Port is fitted.)
Figure 12.5
If the Optional plug-in communication board is fitted, connect terminal 15 and 14 of the controller to (+) and (-) terminals of the
Master device.
For reliable noise free communication, use a pair of twisted wires inside screened cable as shown in Figure
12.5. The wire should have less than 100 ohms / km nominal DC resistance (typically 24 AWG or thicker). Connect the
terminating resistor (typically 100 to 150 ohm) at one end to improve noise immunity.
User Manual
EPSILON
