DOC-0017-07-EN: AC20 Series - EtherCAT Option
DOC-0017-07-EN-A
27.03.2023
3 (58
)
Risk Assessment
Under fault conditions, power loss or unintended operating conditions, the drive may not operate as
intended. In particular:
•
Stored energy might not discharge to safe levels as quickly as suggested and can still be present
even though the drive appears to be switched off.
•
The motor's direction of rotation might not be controlled
•
The motor speed might not be controlled
•
The motor might be energised
A drive is a component within a drive system that may influence its operation or effects under a fault
condition. Consideration must be given to:
•
Stored energy
•
Supply disconnects
•
Sequencing logic
•
Unintended operation
1.5 Safety Information
Risk of Electric Shock
DANGER!
Ignoring the following may result in injury:
- This equipment can endanger life by exposure to rotating
machinery and high voltages.
- The equipment must be permanently earthed due to the high
earth leakage current, and the inverter motor must be connected
to an appropriate safety earth.
- Ensure all incoming supplies are isolated before working on the
equipment. Be aware that there may be more than one supply
connection to the inverter.
- There may still be dangerous voltages present at power terminals
(motor output, supply input phases, DC bus and the brake, where
fitted) when the motor is at standstill or is stopped.
- For measurements use only a meter to IEC 61010 (CAT III or
higher). Always begin using the highest range.
CAT I and CAT II meters must not be used on this product.
- Allow at least 5 minutes for the inverter's capacitors to discharge
to safe voltage levels (<50V). Use the specified meter capable of
measuring up to 1000V dc & ac rms to confirm that less than 50V
is present between all power terminals and between power
terminals and earth.
- Unless otherwise stated, this product must NOT be dismantled. In
the event of a fault the inverter must be returned. Refer to
"Routine Maintenance and Repair".
