Flowserve 3400IQ Digital Positioner - Manual (Page 110)

Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
0
Table 10.9 PID Function Block Parameters
Parameter Initial Value Valid Range Corrective Action
BYPASS 0 1:OFF, 2:ON Initial value is a configuration error.
Set value in valid range.
SHED_OPT 0 1-8 (see Shed
Options in the FF
specs.)
Initial value is a configuration error.
Set value in valid range.
HI_HI_LIM
HI_LIM +INF
+INF PV_SCALE, +INF Values must be set in rank order (e.g. LO_LIM >
LO_LO_LIM but < HI_LIM etc.)
LO_LIM
LO_LO_LIM -INF
-INF PV_SCALE, -INF Values must be set in rank order.
OUT_HI_LIM
OUT_LO_LIM 100
0
OUT_SCALE +/-10% Verify that OUT_HI_LIM > OUT_LO_LIM.
SP_HI_LIM
SP_LO_LIM 100
0
PV_SCALE +/-10% Verify that SP_HI_LIM > SP_LO_LIM.
10.7 Additional Troubleshooting
As a general rule, follow the suggestions for corrective action for suspected problems described this
document. If a problem is still present, perform step 1 below. If the problem still persists, perform
step 2 and so on.
1. In the resource block set the RESTART parameter to ‘Processor’. Then return to ‘run’.
2. Cycle power to the Logix 3400IQ digital positioner
3. Re-start fieldbus driver software on the host computer with the Logix 3400IQ digital positioner
un-powered, then power-up the Logix 3400IQ digital positioner.
4. Call Flowserve’s Valtek Control Product Technical Assistance. (See Technical Assistance on page
10.)
10.8 Simulation Mode
Simulation Mode Dip Switch
A simulation mode is available in the positioner, which is used to aid in system debug if the process
is not running. When simulation mode is enabled, the SIMULATE parameter in the AO block provides
a user-selected value as the readback input to the AO block.
Setting Simulation Dip Switch
ATTENTION: A hardware dip switch on the main PCB cover is set to enable or disable the S
IMULATE parameter. See Figure 10.1 for dip switch selection. Table 10.10 shows how to
set the simulation dip switch on the main PCB cover.