Thermcraft XST-6-0-36-3V - Manual (Page 41)

Installation and Operation Handbook Installation
2408 and 2404 Controller 1-9
Four terminal modules
Note: Module 1 is connected to terminals 1A, 1B, 1C and 1D
Module 2 is connected to terminals 2A, 2B, 2C and 2D
Module 3 is connected to terminals 3A, 3B, 3C and 3D
Module type Terminal identity Possible functions
A B C D
Relay: changeover
(2A, 264 Vac max.)
Heating, cooling,
alarm, or program
event output
DC control: Isolated
(10V, 20mA max.)
+ −
Heating, or cooling
24Vdc transmitter
supply *
+ − To power process
inputs
Potentiometer input
100 Ω to 15KΩ *
+0.5Vdc 0V Motorised Valve
Position feedback
DC retransmission + − Retrans. of setpoint,
or process value
DC remote input or
Process Value 2
(Module 3 only)
0-10Vdc RT source ±100mV
0-20mA
COM
Remote Setpoint
Second PV
Dual output modules
Dual relay
(2A, 264 Vac max.)
Heating + cooling
Dual alarms
Valve raise &
lower
Dual Triac
(1A, 30 to 264Vac)
Heating + cooling
Valve raise &
lower
Dual logic + relay
(Logic is non-isolated)
+ −
Heating + cooling
Dual Logic + triac
(Logic is non-isolated)
+ −
Heating + cooling
Triple logic input and output modules - see ratings on the next page
Triple contact input Input 1 Input 2 Input 3 Common
Triple logic input Input 1 Input 2 Input 3 Common
Triple logic output Output 1 Output 2 Output 3 Common Program events
* Can be ordered fitted in module positions 2 & 3 only.
N/C N/O
Line Load Line Load
Line Load