User manual YAMAHA YS-828W SUPPLEMENTARY SERVICE MANUAL

[. . . ] Be sure to restore covers or shields before operating the Units and run the Units according to the instructions described in this manual. · Any illustrations, photographs, or examples used in this manual are provided as examples only and may not apply to all products to which this manual is applicable. · The products and specifications described in this manual or the content and presentation of the manual may be changed without notice to improve the product and/or the manual. · When ordering a new copy of the manual due to damage or loss, contact your Yaskawa representatives or the nearest Yaskawa sales office and provide the manual number shown on the front cover. [. . . ] Make the adjustments as follows: · If vibration occurs with light load, increase the setting. If the setting is too large, the voltage will be too suppressed and the motor may stall. Hunting-prevention gain 0. 00 to 2. 50 1. 00 No A A No No No 6-36 Improved Operating Efficiency Stabilizing Speed (Speed Feedback Detection Function) The speed feedback detection control (AFR) function measures the stability of the speed when a load is suddenly applied, by calculating the amount of fluctuation of the torque current feedback value, and compensating the output frequency with the amount of fluctuation. Related Constants Name Constant Number Change during Operation Control Methods V/f V/f with PG Open Loop Vector 1 Flux Vector Open Loop Vector 2 Display Speed feedback detection control (AFR) gain Description Setting Range Factory Setting N2-01 AFR Gain Set the internal speed feedback detection control gain using the multiplication function. Adjust this constant as follows: · If hunting occurs, increase the set value. Adjust the setting by 0. 05 at a time, while checking the response. 0. 00 to 10. 00 1. 00 No No No A No No N2-02 Speed feedback detection control (AFR) time constant AFR Time Set the time constant to decide the rate of change in the speed feedback detection control. 0 to 2000 50 ms No No No A No No 6-37 Machine Protection This section explains functions for protecting the machine. Reducing Noise and Leakage Current The switching frequency of the Inverter's output transistor can be changed to reduce carrier noise and leakage current from the motor. Related Constants Name Display Carrier frequency selection CarrierFreq Sel Carrier frequency upper limit CarrierFreq Max Carrier frequency lower limit CarrierFreq Min Carrier frequency proportional gain CarrierFreq Gain Carrier frequency selection for open-loop vector control 2 Carrier Freq Sel * * * * * 1. output frequency) Constant Number Description Setting Range Factory Setting Change during Operation Control Methods V/f V/f with PG Open Loop Vector 1 Flux Vector Open Loop Vector 2 C6-02 Select carrier wave fixed pattern. Select F to enable detailed settings using constants C6-03 to C6-05. 1 to F 6 *2 No Q Q Q A No *5 C6-03 Set the carrier frequency upper limit and lower limit in kHz units. The carrier frequency gain is set as follows: With the vector control method, the upper limit of the carrier frequency is fixed in C603. 2. 0 to 15. 0 *3 *4 15. 0 kHz *2 No A A A A No C6-04 Carrier frequency 0. 4 to 15. 0 *3 *4 15. 0 kHz *2 No A A No No No C6-05 K is a coefficient that depends on the setting of C6-03. C6-03 10. 0 kHz: K = 3 10. 0 kHz > C6-03 5. 0 kHz: K = 2 5. 0 kHz > C6-03: K = 1 00 to 99 *4 00 No A A No No No C6-11 Select the carrier frequency when open-loop vector control 2 is used. 1: 2 kHz 2: 4 kHz 3: 6 kHz 4: 8 kHz 1 to 4 4 No No *5 No *5 No*5 No *5 Q The setting range depends on the control method of the Inverter. This constant can be monitored or set only when 1 is set for C6-01 and F is set for C6-02. Displayed in Quick Programming Mode when motor 2 is set for a multi-function input. 6-38 Machine Protection Control Mode and Carrier Frequency Settings Carrier frequency settings are restricted as listed in the following table according to the control mode selection. Control Mode Carrier Frequency 1: 2. 0 kHz 2: 5. 0 kHz 3: 8. 0 kHz 4: 10. 0 kHz 5: 12. 5 kHz 6: 15. 0 kHz F: Any setting* Detailed settings are available in C6-03, C6-04, and C6-05. Set the deceleration time using C1-02 (Acceleration time 1) or C1-04 (Acceleration Time 2). If the Inverter output current reaches the set value in L3-06 - 2% (Inverter Rated Output Current), the motor will accelerate again at the frequency set or the acceleration time set. Related Constants Name Constant Number Change during Operation Control Methods V/f V/f with PG Open Loop Vector 1 Flux Vector Open Loop Vector 2 Display Stall prevention selection during running StallP Run Sel Description Setting Range Factory Setting L3-05 0: Disabled (Runs as set. With a heavy load, the motor may stall. ) 1: Deceleration time 1 (the deceleration time for the stall prevention function is C1-02. ) 2: Deceleration time 2 (the deceleration time for the stall prevention function is C1-04. ) 0 to 2 1 No A A No No No L3-06 Stall preven- Effective when L3-05 is 1 or 2. tion level dur- Set as a percentage of the Inverter ing running rated current. StallP Run The factory setting reduces the set Level values when the motor stalls. 30 to 200 160% No A A No No No 6-43 Changing Stall Prevention Level during Operation Using an Analog Input If you set H3-09 (Multi-function Analog Input Terminal A2 Function Selection) or H3-05 (Multi-function Analog Input Terminal A3 Function Selection) to 8 (stall prevention level during run), you can change the stall level during operation by setting H3-10 (Gain (Terminal A2)) and H3-11 (Bias (Terminal A2)) or H3-06 (Gain (Terminal A3)) and H3-07 (Bias (Terminal A3). The stall prevention level during operation enabled is the multi-function analog input terminal A2 or A3 input level or the set value in constant L3-06, whichever is the smaller. Stall prevention level during operation Multi-function analog input terminal A2, A3 input level (4 mA) (8. 8 mA) (20 mA) Fig 6. 37 Stall Prevention Level during Operation Using an Analog Input If the motor capacity is smaller than the Inverter capacity or the motor stalls when operating at the factory settings, lower the stall prevention level during operation. INFO Detecting Motor Torque If an excessive load is placed on the machinery (overtorque) or the load is suddenly lightened (undertorque), you can output an alarm signal to multi-function output terminal M1-M2, M3-M4, M5-M6, P3-C3, or P4-C4. To use the overtorque/undertorque detection function, set B, 17, 18, 19 (overtorque/undertorque detection NO/ NC) in one of the following constants: H2-01 to H2-05 (multi-function output terminals M1-M2, P1-PC, P2PC, P3-C3, and P4-C4 function selection). The overtorque/undertorque detection level is the current level (Inverter rated output current 100%) in V/f control, and the motor torque (motor rated torque 100%) in vector control. 6-44 Machine Protection Related Constants Name Constant Number Change during Operation Control Methods V/f V/f with PG Open Loop Vector 1 Flux Vector Open Loop Vector 2 Display Torque detection selection 1 Description Setting Range Factory Setting L6-01 Torq Det 1 Sel 0: Overtorque/undertorque detection disabled. 1: Overtorque detection only with speed agreement; operation continues after overtorque (warning). 2: Overtorque detected continuously during operation; operation continues after overtorque (warning). 3: Overtorque detection only with speed agreement; output stopped upon detection (protected operation). [. . . ] The Varispeed G7-Series Inverters bear CE markings indicating conformance to the Low Voltage Directive and the EMC Directive. · Low Voltage Directive: 73/23/EEC 93/68/EEC · EMC Directive: 89/336/EEC 92/31/EEC 93/68/EEC Machinery and installations that incorporate the Inverter are also subject to CE markings. It is ultimately the responsibility of customers making products incorporating the Inverter to attach CE markings to the finished products. The customer must confirm that the finished products (machines or installations) conform to the European Standards. Requirements for Conformance to CE Markings Low Voltage Directive Varispeed G7-Series Inverters satisfy testing for conformance to the Low Voltage Directive under the conditions described in European Standard EN50178. Requirements for Conformance to the Low Voltage Directive Varispeed G7-Series Inverters must satisfy the following conditions in order to conform to the Low Voltage Directive. · It must be used under conditions corresponding to overvoltage category 3 or less and pollution degree 2 or less as specified in IEC664. · Input fuses: For details on selecting fuses, refer to Table 10. 2 Selection Requirements for Input Fuses with Examples. · With Inverters CIMR-G7C2018 to 2110 and CIMR-G7C4018 to 4300, an enclosure preventing foreign matter from entering from the top or front sides is required (IP4X or higher: panel installation). 10-12 Conformance to CE Markings Input Fuses In order to conform to the Low Voltage Directive, fuses must be provided for inputs. [. . . ]