VMIVME-7750-834燃机模块
A/B/Z/大厅
•根据霍尔区段的驱动开始换向。
•驱动器设置第一个霍尔开关后的电气角度。
•驱动器在第一次索引脉冲开关后重新设置电气角度。
•从现在起,驱动器根据A/B计数器计算电气角度。
A/B/大厅
•根据霍尔区段的驱动开始换向。
•驱动器设置第一个霍尔开关后的电气角度。
•从现在起,驱动器根据A/B计数器计算电气角度。
分解器
SERVOSTAR使用单(两极)或多速度(多极)分解器
反馈以监控电机轴位置。分解器可以被视为变压器
其输出对于任何给定的轴位置是唯一的(绝对位置反馈)。这个变压器由正弦波参考信号驱动。两个交流信号从分解器输入正弦和余弦。
所有这三个正弦波信号都是低电平
易受噪声影响。重要的是使用适当屏蔽的电缆,并使其远离其他噪声辐射设备和电缆。不建议以相同的方式运行反馈和电机电缆
管道Danaher Motion Kollmorgen测试了长达75英尺(22.9米)的电缆长度。没有性能下降。但是,性能可能因电机和分解器而异
类型使用标准Danaher Motion Kollmorgen电缆及其低阻抗和Danaher Motion Kollmorgen GOLDLINE电机旋转变压器进行测试。请参阅当长电缆运行超过250英尺(76m) 是期望的。Danaher Motion Kollmorgen建议使用双绞线屏蔽对进行反馈电缆。伺服星将电机速度计算为位置的导数(位置变化随着时间的推移)。利用其专利技术,所有读数都扩展到16位分辨率。对于驱动器将分解器输入转换为18位分辨率,从而提供平滑的电机速度控制。旋转变压器的数字分辨率(RDRES)为数字转换器系统根据应用速度限制(VLIM)自动确定。
以下是SERVOSTAR分辨率能力的总结。SERVOSTAR以正交编码器的形式向您提供电机位置输出
信号消除了对附加位置反馈装置的需要。产出如下:差分线路驱动器。有一个相关的直流公共输出(C4:引脚3),可以连接将共模噪声和电压峰值降至最低,以保护设备。
由于控制器和驱动器之间通常存在电位差,建议连接(如果出现接地回路,断开并重新测试)。
A/B/Z/Halls
• The Drive according to the hall section start commutates.
• The Drive set the electrical angle after first hall switch.
• The Drive re-set the electrical angle after first Index pulse switch.
• From now on the Drive calculates the electrical angle according to A/B counter.
A/B/Halls
• The Drive according to the hall section start commutates.
• The Drive set the electrical angle after first hall switch.
• From now on the Drive calculates the electrical angle according to A/B counter.
Resolver
The SERVOSTAR uses either single (two poles) or multi-speed (multiple poles) resolver
feedback to monitor the motor shaft position. A resolver can be thought of as a transformer
whose output is unique for any given shaft position (an absolute position feedback). The
transformer is driven with a sinewave reference signal. Two AC signals are returned from the
resolver into the Sine and Cosine inputs. All three of these sinewave signals are low-level and
susceptible to noise. It is important to use properly- shielded cable and to keep it away from other noise-radiating
devices and cables. It is not recommended to run the feedback and motor cables in the same
conduit. Danaher Motion Kollmorgen has tested cable lengths up to 75 ft. (22.9 m). without
degradation of performance. However, performance may vary, depending on motor and resolver
type. Tests were performed with standard Danaher Motion Kollmorgen cable and its lowimpedance and Danaher Motion Kollmorgen GOLDLINE motor resolver. Please consult the
factory for cable and resolver impedance specifications when long cable runs above 250 ft. (76
m) are desired. Danaher Motion Kollmorgen recommends twisted-shielded pair for feedback
cables. The SERVOSTAR calculates motor velocity as the derivative of position (change in position
over time). With its patented technique, all readings are extended to a resolution of 16-bit. For
velocity feedback calculations, the drive converts the resolver input to 18-bits of resolution,
giving smooth motor velocity control. The digital resolution (RDRES) of the Resolver-to-Digital
Converter system is determined automatically according to the application velocity limit (VLIM).
The following is a summary of the SERVOSTAR’s resolution capabilities The SERVOSTAR provides a motor position output to you in the form of quadrature encoder
signals eliminating the need for an additional position feedback device. The outputs are
differential line drivers. There is an associated DC common output (C4: pin 3) which can connect
to your port to keep common mode noise and voltage spikes minimized for device protection.
Because there are normally differences of potential between your controller and the drive,
connection is recommended (if ground loops occur, disconnect and retest).