Program features 47
Programmable relay outputs
The control unit has three relay outputs. The signal to be indicated by the outputs can
be selected by parameters.
Two relay outputs can be added by using a CMOD-01 multifunction extension module
or a CHDI-01 115/230 V digital input extension module.
Settings
Parameter group 10 Standard DI, RO (page 117) and 15 I/O extension module (page
133).
Programmable I/O extensions
Inputs and outputs can be added by using a CMOD-01 or CMOD-02 multifunction
extension module or a CHDI-01 115/230 V digital input extension module. The
module is mounted on option slot 2 of the control unit.
The table below shows the number of I/O on the control unit as well as optional
CMOD-01, CMOD-02 and a CHDI-01 modules.
The I/O extension module can be activated and configured using parameter group
15.
The CMOD-02 offers, in addition to the relay output (non-configurable), a
+24VDC/AC input and a thermistor input.
Note: The configuration parameter group contains parameters that display the values
of the inputs on the extension module. These parameters are the only way of utilizing
the inputs on an I/O extension module as signal sources. To connect to an input,
choose the setting Other in the source selector parameter, then specify the
appropriate value parameter (and bit, for digital signals) in group 15.
Note: With the CHDI, you can use up to six additional digital inputs. The CHDI does
in no way affect the fixed digital inputs on the control board.
Settings
Parameter group 15 I/O extension module (page 133).
Location
Digital
inputs
(DI)
Digital
outputs
(DO)
Digital
I/Os
(DIO)
Analog
inputs
(AI)
Analog
outputs
(AO)
Relay
outputs
(RO)
Control unit 6 - - 2 2 3
CMOD-01 - 1 - - - 2
CMOD-02 - - - - - 1 (non-
configurable)
CHDI-01
6 (115/230 V)
---- 2
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