Lenze BA14.0169 Spring Operated Brake BFK ... - Southern Power

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Installation 4.4 Electrical connection Warning! Work on electrical connection should only be carried out when no voltage is applied. ¥ Bridge rectifier ¦ Spark suppressor § Limit switch activated br - brown bl - blue sw - black ¥ ¥ ¦ ¦ § Wiring diagram 1 : wiring without microswitch Wiring diagram 2: wiring with microswitch K14.0570 FIG 13 Electrical wiring of a 205V brake Note on wiring per diagram 2: If wiring diagram 2 is applied, the air gap is only monitored when the brake is in electrically dead condition. This makes sense, since the armature plate may be affected on only one side when current is fed to the brake. Such imbalanced positioning may simulate the maximal air gap and open the microswitch. If there is no closed contact parallel to the microswitch contact, motor and brake will then be switched off. The microswitch contact closes again when the armature plate is completely released due to the small differential contact distance of the microswitch and the above process is then repeated. Tip! To exclude any mis-interpretation of microswitch signals, processing of same should only takeplace when the brake is electrically dead. 1. Install the rectifier in the terminal box. Mount it in the control cabinet if the motor is of insulation class H. Rectifier permissible ambient temperatures are from -25EC to+80EC. 2. Compare stator (7) coil voltage with the DC voltage of the rectifier installed. 3. Select an applicable wiring diagram (FIG 13). Convert deviant AC voltage, e.g. in a 380 V bridge rectifier, as below. 380/400x205 = 195V Deviations of up to –3% are permissible. 4. Motor and brake are to be wired up in accordance with wiring diagram 1 or 2. 24 BA <strong>BFK</strong>454 GB 3.0
Commissioning 5 Commissioning and operation Warning! Do not touch live connections and/or the moving rotor. The motor must be turned off whilst brake function is being tested. 5.1 Function test Refer to chapter 7 Troubleshooting and fault elimination. 5.1.1 Release / voltage check Applies only to brakes without microswitches. Warning! The brake must be torque-free and the motor not running. Warnung! Do not touch live connections. 1. Remove two bridges from the motor terminals. Do not turn off brake DC power supply. The neutral conductor must also be connected to the motor neutral point when the rectifier is connected to that point. 2. Turn on the current. 3. Measure the DC brake voltage. 4. Compare the result with the nameplate voltage rating. Deviations of up to 10% are acceptable. 5. Check the air gap s Lü . It must be zero and the rotor freely rotatable. 6. Turn the power supply off. 7. Screw bridges to the motor terminals. Remove the additional neutral conductor. 5.1.2 Microswitch - wear check Warning! The brake must be torque-free and the motor not running. Warnung! Do not touch live connections. BA <strong>BFK</strong>454 GB 3.0 25
Page 1 and 2: BA 14.0169 409 407 GB Operating Ins
Page 3 and 4: Nameplate Layout Field 1 Field 2 Fi
Page 5 and 6: Contents 5 Commissioning and operat
Page 7 and 8: Preface and general information 1.3
Page 9 and 10: Safety information Spring-operated
Page 11 and 12: Technical data 3 Technical Data 3.1
Page 13 and 14: Technical data 3.1.3 Brake release
Page 15 and 16: Technical data 3.3 Switching times
Page 17 and 18: Technical data 3.5 Emissions DC swi
Page 19 and 20: Installation 4.2 Assembly 4.2.1 Pre
Page 21 and 22: Installation 1.1 Complete lever. 1.
Page 23: Installation 4.3.5 Mounting the sea
Page 27 and 28: Commissioning 3. Exert pressure on
Page 29 and 30: Maintenance 6 Maintenance / repair
Page 31 and 32: Maintenance 6.3.2 Replacing the rot
Page 33 and 34: Maintenance 6.4.2 Spare parts list
Page 35 and 36: Maintenance Accessories Rotor P Alu
Page 37 and 38: Troubleshooting and fault eliminati
Page 39: Declaration of Conformity/Manufactu

Lenze BA14.0169 Spring Operated Brake BFK ... - Southern Power

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