ZIEHL-ABEGG ZA top SM160.40B/S Original Operating Instructions

ZIEHL-ABEGG ZA top SM160.40B/S Original Operating Instructions Manual pdf 11 page image

5.5.1 Triggering of the brakesIt is recommended to switch the brake through two contactors, one is switching the AC-side (K4) andthe other is switching the DC-side (K3).To reduce noises during brake disconnect the brakes should be switched to the alternating currentside (K4), while normal operation. The brakes are switched-off slower and thus quieter through therectifier.To ensure instantaneous brake application in emergencies, during inspection drives and return rides,use a second contactor (K3), which disconnects the brakes from the direct current side. Integrate thiscontactor into the safety circuit.CAUTION!Caution!Brakes, which are connected to the direct current side, must be protected against excess voltage fromthe switching actions by using corresponding varistors!Due to the high operating current, master contactors must be used to switch the brakes!Simplified diagram for brake activationThe contacts from K3 must close before the contact from K4 and are only permitted to open after thecontact from K4 has opened.6 Start-up6.1 Operating conditions" The drive must be installed in a not free accessible machine room or a closed hoistway." Be aware of the protection class specified on the name plate." Do not operate the motor in an explosive atmosphere." The ambient temperature may be within 0 °C and +40 °C." Maximum permissible humidity 95 %, not wet." Reduced cooling when installed 1000 m above sea level. Therefore, the torque by 1 % per 100 mmust be reduced or the duty cycle time of 1.5 % per 100 m." Please contact ZIEHL-ABEGG SE in case of orders deviating from the corresponding applicationconditions.6.2 First-time start-upBefore first-time start-up, check the following:" Installation and electrical connection have been properly completed." Safety devices are installed." All leftover installation materials and other foreign materials have been removed." The protective earth is connected." Motor protection correctly connected and operative." Cable entries closed." Mounting, installation position and accessories are o.k." Connection data corresponds to the data on the name plate.Start-up$7%$B*% Part.-No. 01008166-GB (EU-BD 845)11/682ULJLQDORSHUDWLQJLQVWUXFWLRQVZAtop – model series SM160.30B/40B