Shinko BCD2R User Manual

6
4. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result in severe injury
or death due to electrical shock.
• TRANSMIT OUTPUT: Transmission output
• EXT.RESET: External reset input
• RS-485: Serial communication (C5 option)
• PWR: Power supply
• O1: Limit control output (OUT1)
• A1: Alarm 1 (A1) output
• A2: Alarm 2 (A2) output (EV2 option)
• DC: Direct current, DC voltage input
• TC: Thermocouple input
• RTD: Resistance temperature detector input
(Fig. 4-1)
Notice
• The terminal block of the BCD2 is designed to be wired from the left side.
The lead wire must be inserted from the left side of the terminal, and fastened by the terminal screw.
• Use a thermocouple and compensating lead wire that correspond to the sensor input specification
of this controller.
• Use the 3-wire RTD which corresponds to the input specification of this controller.
• This controller does not have built-in power switch, circuit breaker and fuse. Therefore, it is
necessary to install a power switch, circuit breaker and fuse in the circuit near the external
controller. (Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• For the OUT1 (Limit control output terminals 15-16), externally use a relay according to the capacity
of the load to protect the built-in relay contact.
• When wiring, keep input wires (thermocouple, RTD, etc.) away from AC sources or load wires to
avoid external interference.
• Do not apply a commercial power source to the sensor connected to the input terminal nor allow the
power source to come into contact with the sensor.
Lead wire solderless terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as shown below.
The torque is approximately 0.63 N•m.
Solderless
terminal
Manufacturer Model Tightening torque
Nichifu Terminal Industries CO.,LTD. TMEV1.25Y-3
Y-type
Japan Solderless Terminal MFG CO.,LTD. VD1.25-B3A
Nichifu Terminal Industries CO.,LTD. TMEV1.25-3
Ring-type
Japan Solderless Terminal MFG CO.,LTD. V1.25-3
0.63 N•m
(Fig. 4-2)

Shinko BCD2R Specifications

General

Brand	Shinko
Model	BCD2R
Category	Controller
Language	English