Warning, Notices – WIKA CF1M User Manual
Page 17
Operating Instructions Temperature Indicating Controller CF1M
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9. Terminal arrangement
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 an Electric Shock
which could cause severe injury or death.
R/
: Relay contact output
S/
: Non-contact voltage output
A/
: Current output
SV2 : Setting value memory
(external selection)
W1X : Heater burnout alarm
Event : Temperature alarm,
output Loop break alarm or
Heater burnout alarm output
Dotted line: Option (Designation required)
[Fig. 9-1]
Notices
• Use a thermocouple and compensating lead wire according to the input specifications of this
controller.
• Use a 3-wire system of RTD according to the input specifications of this controller.
• This controller has no built-in power switch nor fuse. It is necessary to install them manually
(IEC approved, 100Vac 5A, 220Vac 5A) in the circuit near the external controller.
• In the case of 24Vdc, do not confuse the polarity.
• With the relay contact output type, use an external auxiliary electromagnetic switch to protect
the built-in relay contact.
• When wiring, keep input wire (Thermocouple, RTD, etc.) away from AC source and load wire
to avoid external interference.
n Recommended terminal
Use a solderless terminal with an insulation sleeve that fits to M3 screw as shown below.
COM
B
Option CR5
YA(-) YB(+)
A
B
R/
100 to 240Vac
or 24Vac/dc
RTD
S/
A/
or
TC
Event
output
Option W1X (CT input)
or option SV2
5
4
3
9
8
10
1
2
11
12
7
6
4
3
1
2
9
8
3.2mm
5.8mm or less
3.2mm
5.
8mm or less