50 Operation principle and hardware description
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External control connection terminals, frames R6...R9
The layout of the external control connection terminals of frames R6...R9 is shown
below.
R6...R9
3
X1:1...3
X1:4...6
X1:7...9
X2
X3:1...3
X3:4...6
X4
X18
X16
X17
X12
WARNING!
Do not connect the +24 V AC cable to the control unit ground when the control
unit is powered from an external 24 V AC supply.
1
2
X13
X10
X5
X8
S4, S5
X7
X14
X6
Description
X1
Analog inputs and outputs
X2
Aux. voltage output
X3
Digital inputs
X4
Safe torque off connection
X5
Connection to embedded EIA-485
fieldbus adapter module
X6
Relay output 3
X7
Relay output 2
X8
Relay output 1
X10
External +24 V AC/DC input connection
X12
Panel connection
X13
Option slot 1 (fieldbus adapter mod-
ules)
X14
Option slot 2 (I/O extension modules)
X16
Auxiliary fan 1 connection
X17
Auxiliary fan 2 connection
X18
Air in temperature sensor connection
S4,
Termination switch (S4), bias resistor
S5
switch (S5), see
fieldbus connection (page 223)
1
Panel port (control panel connection)
2
Cold configuration connection. This
connector is used with the CCA-01 con-
figuration adapter.
3
Power OK and Fault LEDs. See section
LEDs (page
262).
Embedded EIA-485