- Has main feedback pot been rotated, or does it need rotating because the unit has been subjected to change in direction of movement on loss of signal? See section 4.11 – Resetting Feedback Pot.
- Is air supply clean, dry, and oil free?
Unit moves slower than expected up-scale or downscale:
- Check air pressure – above 50psi / 3.5 Bar?
- Check flow adjuster screws – has one been screwed in?
- Is air supply clean, dry and oil free? If not there is a possibility that the positioner servo has been damaged.
Movements are too jerky:
- Adjust proportional gain to increase smoothness – then reset damping and setpoints as instructed in Section 4.
Lack of sensitivity to changes in signal:
- Adjust proportional gain to increase sensitivity – then reset damping, and setpoints as instructed in Section 4.
Set point is overshot when positioner moves rapidly:
1. 目录.
页数. 章节
1 1. 目录
2 4.7比例增益和阻尼设置
3 4.8低电流和高电流点设置
4 4.9定位器的顺时针和逆时针转换
4 4.10失去信号时如何改变方向
5 4.11重新设置反馈电位计
6 4.12 EEPROM存储器校验和错误
6 4.13选择和设置非线性曲线
7 4.14设置可选角度跨距与调零
8 4.15调节可选圆锥型显示器的位置
9 5.文护和故障排除
.7比例增益和阻尼设置(稳定性和灵敏度)
选择安装模式,并且第一个参数选择是自动PGAIN—比例增益。按压SET键,PGAIN指示灯将开始闪亮,此时可通过按压UP或者DOWN键该参数值就增大或者减小。有29个可被选择的PGAIN设置,每按压UP或者DOWN键一次,其增益设置值改变为1.1倍。中间一个为默认设置,默认设置上面十四个和下面十四个都给予设置。超过第十四次按键就没有效果。
注意:当UP或DOWN键被按下,新PGAIN值存储在非易失性存储器,即使在调整和设置模式之前定位器被断电其值还被保留。
定位器被激活同时调整pgain自动增益设置,并继续跟随输入信号。这提供了机会,在一个典型的应用方式,输入信号的变化,并定性观察的定位器的响应,以及它如何被改变pgain设置的影响,以便优化。按下UP按钮,最大化的灵敏度和准确性,在响应值增加时,信号更加通畅,如果你过于多增加了比例增益以至于定位器变得不稳定和容易受到周围干扰。按下DOWN键使斜波信号更平稳化,失去了快速响应信号的微小变化值。当正确的设置被找到,按SET键再次离开调整模式。 数字式EL定位器英文文献和中文翻译(6):http://www.751com.cn/fanyi/lunwen_9012.html