Warning, Notice – WIKA CS4S User Manual
Page 10
Operating Instructions Temperature Indicating Controller CS4S
V1.1
•
10/2006
- 10 -
4. Wiring connection
Warning
Turn the power supply to the instrument off before wiring or checking it.
Working or touching the terminal with the power switched on may result in Electric Shock
causing severe injury or death.
(Fig. 4-1)
• OUT1
: Control output 1
• OUT2
: Control output 2
• A1
: Alarm 1 output
• EVT
: Event output (A2 output, Heater burnout alarm output, Loop break alarm output)
• CT
: CT input
• SV2
: Main setting 2 (SV2)
• RS-485
: Serial communication (RS-485)
• TC
: Thermocouple
• RTD
: Resistance temperature detector
• DC
: DC current (DC mA), DC voltage (DC V)
• 50
Ω
: Shunt resistor 50
Ω for input signal DC current
Notice
• The terminal block of the CS4S 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.
• Dotted lines show options.
• Use a thermocouple and compensating lead wire according 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 or fuse. Therefore, it is necessary
to install them in the circuit near the external controller.
(Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)
• When using a 24V AC/DC for the power source, do not confuse the polarity when it is DC.
• When using a relay contact output type, 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.
POWER SUPPLY
24V AC/DC
100 to
240V AC
0.3A
250V
AC
3A
250V
AC
3A
250V
AC
OUT
2
OUT1
CT
NO
NO
NO
A1
EVT
SV2
YA
YB
SG
RS-485
TC RTD
B
B
A
50
Ω
DC
mA
DC
V