Expanding Cl-Lmr/Cl-Lmt - ABB CL Series Applications Manual

1SVC 440 795 M0100
Expanding CL-LMR/CL-LMT CL-LMR/CL-LMT can be expanded locally using the
CL-LER.18AC2, CL-LER.18DC2, CL-LER.2O or CL-LET.20DC2
expansion modules, or remotely via the CL-LEC.CI000
coupler unit.
Install the units and connect the inputs and outputs as
described (a chapter "Installation", Page 27).
You process the inputs of the expansion devices as contacts
in the CL circuit diagram in the same way as you process the
inputs of the basic unit. The input contacts are assigned the
operand identifiers R1 to R12.
R15 and R16 are the group fault alarms of the transistor
expansion unit (a section "Monitoring of short-circuit/
overload with CL-LST, CL-LMT and CL-LET", Page 234).
The outputs are processed as relay coils or contacts like the
outputs in the basic unit. The output relays are S1 to S8.
h
CL-LER.18AC2 and CL-LER.18DC2 are provided with the
outputs S1 to S6. The other outputs S7, S8 can be used as
markers.
How is an expansion unit recognised?
The logic relay checks cyclically whether a device is sending
data on CL-LINK.
Transfer behaviour
The input and output data of the expansion units is
transferred serially in both directions. Take into account the
modified reaction times of the inputs and outputs of the
expansion units:
Input and output reaction times of expansion units
The debounce setting has no effect on the expansion unit.

Expanding CL-LMR/CL-LMT

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