Smart Positioner
YT-2500 / 2550 / 2501 Series
Product manual
Ver. 1.04
34
7. Optional Sub-PCB Installment
By adding sub-PCB, the positioner can have additional functions. There are 3 types of sub-
PCB.
Hart Only
Ptm Only
Ptm+Hart
Fig. 7-1: Types of Sub-PCB
When purchasing option sub-PCBs separately, 4 Bolts and 2 supports (3 at Limit switch
internal option) are supplied together with sub-PCB.
7.1
Installation steps
1. Open base cover, PCB cover. Separate the Main PCB from base body.
2. Mount 2ea of sub-PCB support on Main PCB with 2ea of bolt.
3. Insert connector of sub-PCB into connector of main PCB correctly.
4. Fasten sub-PCB with the rest of bolts or Pcb cover support.
Standard type
Limit switch type
Fig. 7-2: Installation of Optional sub-PCB on Main PCBs
JP1 jumper must be removed, when HART option included sub-PCB is being mounted.
5. After PTM sub-PCB is installed newly, values of TR_ZERO and TR_END must be
calibrated for correct output signals. For the calibration of TR_ZERO and TR_END,
please refer to section 8.7.2 of this manual.
