Full functional testing on all Otis MCS 321 and MCS 220M elevator control systems from NDC.
Quality assured every time.
Off the shelf service exchange available on many models.
On the ground tech support available.
Some of the models available:
Otis Hall Position Indicators (HPI)
Used with the MCS321 Controller and onwards, these now obsolete HPI's utilise Otis' own Remote Station Data Link to communicate the position and direction of travel of the car.
Otis manufactured, these HPIs can be difficult and expensive to replace as they are integrated with the main control panel, and one failure can mean the replacement of all of the screens on each floor of the building.
The use of high voltage plasma display technology means that the units can be read even in direct sunlight - which is very important in lift elevator applications. However, the system often lacks a ‘screensaver’ function meaning that the flat-panels can suffer screen burn over time which leads to the displays looking unsightly and prone to failure.
Following a successful reverse engineering project, NDC can now offer a refurbishment service for the HPI models FBA23600W1 and FBA23600V1. This new service includes replacement of the plasma display module, or an upgrade of the display to the latest high-intensity LCD, giving a fresh look to the graphics display.
Refurbishment of the MCS 321 Control Boards
NDC are also able to offer a refurbishment program for the main control boards installed on the MCS 321 Controller.
Supported PCB types:
- RCB2
- LMCSS
- COCO MCB
The HPI and PCB refurbishment program is now available from NDC our Partners.
Otis DBSS OVF 1 / 30 Drives
The now obsolete Otis OVF1 elevator drive (also referenced as the OVF30 depending on the design revision) was developed by the Otis Elevator Company in the 1990’s to operate closed loop, flux vector control of gearless motors in combination with the Otis MCS 321 Controller and various sub systems.
The Otis DBSS (Drive and Brake Sub System) which incorporated these drives was manufactured in three ratings:
- Otis DBSS 15Kw Elevator Drive Otis Part Number ACA21290BJ2 (90A/15Kw)
- Otis DBSS 22Kw Elevator Drive Otis Part Number ACA21290BA4 (120A/22Kw)
- Otis DBSS 32Kw Elevator Drive Otis Part Number ACA21290BM1 (210A/32Kw)
NDC can now offer Repair, Function Test and Core Exchange of all ratings and variants of the OVF1/30 and SPEC 90 MSVF drives as part of our comprehensive support for the obsolete Otis MCS 321 elevator system.