WIKA CS4L - Manual (Page 13)

Operating Instructions Temperature Indicating Controller CS4H / CS4L
V1.1 • 05/2006 - 13 -
4. Wiring connection
Warning
Turn the power supply to the instrument off before wiring or checking.
Working or touching the terminal with the power switched on may result in Electric Shock
causing severe injury or death.
Moreover, the instrument must be grounded before the power supply to the instrument is
turned on.
4.1 Terminal arrangement
(Fig. 4.1-1)
• OUT1
: Control output 1 (Heating)
• OUT2 : Control output 2 (Cooling)
• A1 : Alarm 1 output
• A2/LA : Alarm 2/Loop break alarm output
• HB : Heater burnout alarm output
• P24 : Transmitter supply output
• RS-485 : Serial communication (RS-485)
• SV2 : Second set value (external selection)
• CT : CT input
• TC : Thermocouple
• RTD : Resistance temperature detector
• DC : DC voltage (DC V) or DC current (DC mA)
• 50 Ω : Shunt resistor 50 Ω for input DC current
POWER
SUPPLY
POWER
SUPPLY
24V AC/DC 100to240V AC
GND
NC
NO OUT1
3A
250V AC
NO
3A
250V AC
A1
NO
3A
250V AC
24V DC
30mA
P24
OUT2
/HB
RS-485
NO
3A
250V AC
A2/LA
(HB)
YA (-)
YB (+)
SV2
CT
SG
DC
V
TC
RTD
B
B
A
1
2
3
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DC
mA
50
Ω