General Error List - Bosch Rexroth SHA Series Operating Instructions Manual

Self-contained servo-hydraulic linear axis

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Bosch Rexroth AG

Troubleshooting

14.3

General error list

Malfunction

Thermal shutdown

Low pressure warning of

accumulator

Malfunction or destruction

of electronic components

Oscillations of the axis

Axis does not move or

moves in an uncontrolled

manner or vibrates

Axis is unstable

●

Try to determine any changes of the overall system in which the product

is integrated:

–

Were there any changes to the product's operating conditions or

operating range?

–

Were there any changes (e.g. retrofit) or repairs carried out on the

complete system (machine/system, electrical system, control) or on

the product? If yes: What were they?

–

Was the product or machine used as intended?

–

How did the fault become apparent?

●

Try to get a clear idea of the cause of error. If possible, ask the direct

(machine) operator.

●

If you cannot rectify the error, contact one of the contact addresses

which can be found at:

Possible cause

Reduced cooling power

Load cycle outside specifi‐

cation, e.g. break time was

reduced or time in force

control extended

High external system leak‐

age, leakage of gas pres‐

sure accumulator

Defective component, in‐

creased

generation

noise

Incorrect wiring

Excessive vibration of the

axis

Incorrect

installation

electronics and wiring

Electrical signals are not

received

Wrong gas pressure in the

hydraulic accumulator

Faults in the system

Tab. 14-1:

General error list

Self-contained servo-hydraulic linear axis Type SHA...

http://www.boschrexroth.com

Remedy

Ensure sufficient ventilation

Check the fan (in case of air cooling) for correct connection

In the case of water cooling, check whether the water supply is

connected and whether water actually flows through the cooler.

Adapt cycle

Localize leakage