OMC RE20 - Optional Sub-PCB Installment; Installation Steps

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Installation
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O
p
eration and Maintenance Manual ManRE20en Rev.06/2022
OMC S.p.A: Via G. Galilei, 18 - 20060 - Cassina de Pecchi (MI) - ITALY - www.omcvalves.com - Tel.: (+39) 02.95.28.468
7. Optional Sub-PCB Installment
By adding sub-PCB, the positioner can have an additional PTM function.
Fig. 7-1: Sub-PCB of PTM
When purchasing option a sub-PCB separately, 4 Bolts and 2 supports are supplied together with
sub-PCB.
7.1 Installation steps
1. Mount 2ea of sub-PCB support on sub-PCB with 2ea of bolt.
2. Open base cover, PCB cover. Separate the Main PCB from base body.
3. Insert connector of sub-PCB into connector of main PCB correctly.
4. Fasten sub-PCB with the rest of bolt 2ea.
Fig. 7-2: Installation of Option PCB on Main PCBs
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.