ABB CL-LMR 18AC2 Series User Manual

Wiring with the logic relay
130
1SVC 440 795 M0100
These tasks can be implemented with the following solution.
I8 starts the drives. I7 and I6 carry the feedback signals of the
motor-protective circuit-breakers. The drives are stopped if a
motor-protective circuit-breaker trips. The analog value
comparators control the difference of the path distance. The
appropriate drive is stopped temporarily if one path distance
is outside of the set tolerance. The coils and contacts have
the following meanings:
• M8 = enable for all drives
• Q1 = drive 1, counter drive 1 is connected with input I1
and this with high-speed counter C13.
• Q2 = drive 2, counter drive 2 is connected with input I2
and this with high-speed counter C14.
• A1 = comparison, if C13 is less than C14, drive 2 is too
fast.
• A2 = comparison, if C14 is less than C13, drive 1 is too
fast.
• A3 = comparison, if C13 and C14 are equal, both drives
can be activated.
• The hysteresis value of A1, A2 and A3 depends on the
resolution of the transducer and the mechanical system.
Circuit diagram display Parameter settings of the counter C13
I8-I7-I6-ÄM8
M8ua2u---ÄQ1
dA3k
da1u---ÄQ2
hA3k
--------uCC
13
hCC 14
C13 H +
S +0

ABB CL-LMR 18AC2 Series Specifications

General

Rated Voltage	250 V AC
Category	Relays
Output	2 c/o (SPDT) contacts
Terminal Type	Screw Terminal
Contact Configuration	2 c/o (SPDT) contacts
Electrical Life	100, 000 operations
Mechanical Life	10, 000, 000 operations

Summary

Logic relay

Installation

Danger of electric shock

Highlights crucial safety rules to prevent electrical hazards during installation.

Mounting

Connecting the power supply

Explains the procedures for connecting AC and DC power supplies to the logic relay.

Connecting the inputs

Guides on wiring various types of digital and analog inputs to the logic relay.

Connecting outputs

Explains how to connect relay and transistor outputs to loads like contactors and motors.

Commissioning

Creating your first circuit diagram

Offers a step-by-step guide to wiring and creating a basic CL circuit diagram.

Testing the circuit diagram

Wiring with the logic relay

Analog value comparator/threshold value switch

Explains the use of analog comparators for threshold switching and comparing input values.

CL settings

Password protection

Covers setting up password protection for unauthorized access to the logic relay.

Setting date and time

Startup behaviour

Retention (non-volatile data storage)

Explains how actual values and settings are retained after power loss or device reset.

Inside the logic relay

Delay times for inputs and outputs

Monitoring of short-circuit/overload with CL-LST, CL-LMT and CL-LET

Details how to monitor outputs for short-circuits or overloads using internal inputs.

Saving and loading circuit diagrams

Memory module

CL-SOFT

CL-SOFT

Introduces the PC software for creating, storing, test and managing CL circuit diagrams.

What happens if …?

Messages from the CL system

Possible situations when creating circuit diagrams

Provides troubleshooting steps for common issues encountered during circuit diagram creation and operation.

Appendix

Technical data

Contains comprehensive technical specifications covering environmental, mechanical, and electrical data.