6 test run without load, 7 operational checks – with load, 8 test run with load – R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist LM 10 Stepless User Manual

Page 17: 9 test run with overload, 10 after the test run

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LM10 STEPLESS I&M MANUAL/EN/11.30.2010


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This document and the information contained herein, is the exclusive property of R&M Materials Handling, Inc., and represents a non-public, confidential and proprietary trade secret that
may not be reproduced, disclosed to third parties, altered or otherwise employed in any manner whatsoever without the express written consent of R&M Materials Handling, Inc.
Copyright © (2010) R&M Materials Handling, Inc. All rights reserved.

3.6 Test run without load

Make sure that movement will not cause any danger to the environment or to the crane itself. Avoid

driving close to the limit areas.

Check limit switches manually if possible.

Check the run commands on the display panel and correct the hoisting direction. The arrow rotates

clockwise if S1 is applied and counter-clockwise if S2 is applied.

Drive direction S1 at minimum speed for 5 to 10 seconds. Accelerate to full speed. Run 5 to 10 seconds.

Stop. Repeat the same in direction S2. Check the frequency display to make sure that the frequency
changes through the whole operational frequency range from minimum to nominal speed.

Check motor operation (acceleration, deceleration and braking): accelerate to full speed direction S1,

change to full speed direction S2 and full speed direction S1 again and stop.

Check limit switch functions: drive direction S1 slowly and check the limit switch operations. Re-check

using full speed. Repeat the same check for direction S2.

3.7 Operational Checks – With Load

After completion of no-load operational tests, the user /owner should perform a full load test even though

each complete hoist is load tested at factory.

Lift a near capacity load about one (1) foot [30cm] above floor level. Check that the brake holds load.

Also, check stopping capability of brake when lifting to a stop and lowering to a stop.

Move trolley the full length of monorail or crane beam. Check for any binding of trolley wheels on flange

and/or interference at splice joints, hanger connections / bolts, etc.

Check contact with stops. Contact with stops

SHALL only be made with trolley bumpers. Stops that are

designed to make contact with wheels

SHALL NOT be used.

3.8 Test run with load

Make sure that movement will not cause any danger to the environment or to the crane itself.

Drive in both directions at minimum and maximum speeds.

3.9 Test run with overload

If an overload test has to be performed during crane commissioning, minimum frequency should be raised
for duration of the commissioning to 20Hz. Minimum frequency can be changed with parameters P1.1.4.
After testing, minimum frequency should be changed back to its original value.

3.10 After the test run

Record all parameter value changes in the parameter list.

Make sure all remarks and setting values are recorded.

NOTE: It is recommended to store the parameter settings in file User parameters,
see Section 5.5.8.1 User Parameters.

NOTE: The supply cable and main isolator switch must be supplied by the
customer.

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