Bamo BAMOPHOX 194, Инструкция по эксплуатации

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Page 15
194 M1 01 F 12-13-2013
Regulation gain Ti(s) Td(s)
PID 1.2 x T/t 2 x t 0.55 x t
PI 0.9 x T/t 3.3 x t 0
P T/t 9999 0
ADJUST PID PARAMETERS
In order to determinate the setup values for PID regulation, we recommend to use the Ziegler-Nichols open loop method
Proceed as following:
- Connect a recorder to the analogic measurement output or write the reading measurement values for then to draw the graph f
(time)
- Switch on the PID regulation in MANUAL mode
- Reach to and keep close the measurement value to the set point, adjusting the PID output
- Apply on ∆Cde a step of 10 % (for instance) on the analog output (Cde).
Example:
if the value is 30%, apply 40%
- Note on the graph the corresponding timing T
0
- Find on the graph both times t ant T such as ∆m= ∆Cde:
t = delay of response
T = Time corresponding to the same variation in % of measurement (∆m) and the analog output (∆Cde), ∆m= ∆Cde.
This value may be found out on the slope.
- Modify the PID parameters as following:
REgUL PID
This operating mode allows a PID regulation with an analogic
output 0/20 or 4/20 mA
(terminals 3 and 4). This output is no
more available for temperature output.
REGUL ON/OFF To switch ON or OFF the regulation mode
REGUL AUTO/MANU MANU=MANUAL to be able to check the relays output
SET VAL 00.00 ppm Set point value
GAIN : 00.000 Gain setup (see below ADJUST PID PARAMETERS)
T.i : 0050 Sec Integral timing
Td : 0012 Sec Derivative timing
ACTION: DIRECT/REVERSE Direct action or Reverse action for PID regulation
OUTPUT 4/20 mA / 0/20 mA Signal output
SAVING ?
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ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
VALID
To switch the PID regulation on stand-by, input 24 V= 20 mA on terminals 5(+) and 6(-).
MENU
+
Next menu: Output mA
MEASUREMENT