09.F0.R01 - Drive speed controller - KEB

KEB COMBIVERT static frequency inverters use a high level of electronic technology. Upon receipt, please ensure that the device is complete and has not suffered any damage during transport. In the event of an anomaly, please raise reservations with the carrier and contact us directly. Before commissioning the equipment, please ensure that it is installed and connected correctly in accordance with this instruction manual. The warranty granted on this equipment is 6 months from the date of delivery subject to compliance with the operating conditions and instructions described in this manual (protection devices or fuses excluded).

Exceptions:

1. Repeated earthing and short circuits at the KEB COMBIVERT output can lead to damage to the device.

2. A short circuit during the phase where the motor is generating (2nd or 4th quadrant, re-injection on the direct current circuit) can cause damage to the device.

Connection

Trouble-free and safe operation of the drive is only guaranteed if the following instructions are respected. Failure to follow these instructions may cause damage. Failure to follow these instructions may cause failure. Failure to follow these instructions may result in malfunction or damage. malfunction or damage. – Only install and connect the device by qualified personnel. – Comply with the measures to be taken for the installation and use of electrical equipment (VDE 0100). – Take protective measures for people and machines according to the data and laws in force. – The KEB COMBIVERT is designed for a fixed power supply. – Do not connect or disconnect the power and control cables while the frequency converter is connected to the power supply. – Do not carry out measurements on the device while it is in operation. – Do not confuse the power and motor cables. – Check the mains voltage and the nominal motor voltage. – Separate the control cables from the power cables (distance 10 cm). – Only connect switching or adjustment devices (relays, switches, potentiometers) designed for low level to the control cables. – Use shielded and twisted control cables. Connect the shields to the PE terminal of the drive only. – Only use shielded and twisted motor cables. Place the shield on PE and on the motor casing. – Ensure a good connection to the ground of the drive (star connection, avoid earth loops, as short a connection as possible to the network ground). – Use shielded-twisted cable for the braking module.

Leakage current - Differential circuit breaker (FI)

– A frequency variator on a three-phase supply can prevent, in the event of earthing, the tripping of the residual current differential circuit breaker due to the direct current component of the differential current. For this reason, and according to the VDE 0160 standard, the differential circuit breaker cannot be used as the only protection measure. protection. Other measures such as space protection or override, which is not permitted at the frequency converter output, must be taken. – The differential circuit breaker must correspond to the new model in accordance with VDE 0664. – The tripping current should be 200 mA or more to prevent premature tripping due to leakage current of the drive. – Exception: Exception: For single-phase power drives (L, N), the use of a differential circuit breaker as sole protection is permitted if it corresponds to the new model according to VDE 0664.

Instructions

– The use of a cutting device between the power supply network and the frequency converter allows the KEB COMBIVERT to be isolated from the rest of the installation. – To control a motor, you must avoid switching between the motor and the KEB COMBIVERT in operation, as this could result in the activation of the drive's protection functions. However, if this switching is essential, please contact KEB for appropriate protection measures. For the control of several motors, switching is permitted, when the drive activation is closed, if at least one motor is rotating during switching. The drive must be sized according to the motor starting currents. If no motor is rotating during this shutdown, the activation control must be opened and the Speed Search function activated. This function can only be controlled after closing the motor contactors. – If a new start order (power supply network) is given to the K