Azbil AVP201 User Manual

5-10
5.6 Adjustment Procedure when using device with Booster Relay
When using the device with a booster relay, perform adjustment as follows.
Mounting of device and
booster relay on control valve
Booster relay sensitivity
adjustment
Auto-setup execution
Manual configuration of
dynamic characteristics
Booster relay sensitivity readjustment
State at time of hysteresis
measurement
Dynamic
characteristics test
Re-modification of
dynamic characteristics
Dynamic characteristics
End
Connect the air piping between the device and the booster relay correctly.
Adjust sensitivity by manipulating the sensitivity adjustment throttle of
the booster relay.
Note: In the case of the ordinary IL100 type, starting from the highest
sensitivity state (the state in which the sensitivity adjustment
throttle is fully closed), turn the sensitivity adjustment throttle
counterclockwise 1.5 turns and use the device with the booster
sensitivity reduced. When using other booster relays as well, first
reduce the sensitivity.
Temporarily turn off the input signal and
then reduce the sensitivity further by rotating
the booster sensitivity adjustment throttle by
between a quarter turn and a half turn.
Temporarily turn off the input signal and
then interrupt the auto setup program. Then
apply the input signal again and perform:
• actuator size modification*
1
• hysteresis modification*
2
• dynamic characteristic data modification*
3
• actuator size modification*
1
• hysteresis modification*
2
• dynamic characteristic data
modification*
3
etc.
*1. Change the actuator size parameter such that it becomes progressively smaller: 6 to 5, 5 to 4, ...
*2. In order from light to medium to heavy
*3. Reduce P and GP, reduce I and GI, increase D and GD, etc.
• Overshoot (or undershoot)
occurs often
• Takes a long time to stabilize
Check the dynamic
characteristics by executing
the check at five points.
Start adjustment
Dynamic characteristics data for reference if
settings information is available
• Perpetual hunting
Adjustment ends.
Satisfactory
Normal
Hunting

Azbil AVP201 Specifications

General

Brand	Azbil
Model	AVP201
Category	Valve Positioners
Language	English