ProSoft 1552-MBS Modbus Communication Interface (External Enclosed Version)
The ProSoft 1552-MBS is an external enclosed Modbus protocol interface module for Allen‑Bradley 1336 series variable frequency drives, part of the legacy 1550-MBS product family. It enables Modbus RTU serial communication to read drive status, adjust parameters and perform diagnostics for 1336 VFDs.
Key Features
- External enclosed housing variant of 1550-MBS for 1336 VFD
- Modbus RTU serial interface, RS485 multi-drop bus
- Allows Modbus master to access drive parameters, fault codes, speed reference & feedback
- DIP switch configuration for address, baud rate, parity
- Power supply: 120 VAC input power for external enclosure model
- Legacy product, designed for retrofitting existing 1336 drive installations
- Status LED indicators for power and communication activity
Technical Specifications
| Part Number |
1552-MBS |
| Product Type |
Modbus RTU Communications Interface for 1336 VFD |
| Enclosure Type |
External enclosed unit (1552 variant) |
| Power Input |
120 VAC |
| Communication Interface |
RS485, Modbus RTU |
| Supported Device |
Allen‑Bradley 1336 adjustable frequency AC drive |
| Modbus Functionality |
Modbus Slave, accessible by Modbus RTU master |
| Configuration Method |
On-board DIP switches |
| Baud Rate Options |
1200, 2400, 4800, 9600, 19200 bps |
| Parity |
None / Odd / Even configurable |
| Operating Temperature |
0°C ~ +60°C |
| Storage Temperature |
-40°C ~ +85°C |
| Humidity |
5% ~ 95% non-condensing |
| Product Status |
Legacy / Obsolete |
Applications
Legacy drive retrofit projects, connect Allen‑Bradley 1336 VFDs to Modbus RTU master PLCs, SCADA and HMI systems for remote speed control, parameter modification and fault diagnostics in water treatment, conveyor and pump systems.
Warranty & Notes
Supplied by independent automation supplier SHLY-PLC, not an authorized ProSoft distributor. Cross-check all parameters before installation. This is an obsolete legacy product. Refer to ProSoft 1550-MBS user manual for full installation and safety instructions.
FAQ
Q: What is the difference between 1550-MBS,1551-MBS and 1552-MBS?
A: 1550 is core board; 1551 is internal mount card for 1336 drive; 1552-MBS is external enclosed standalone version.
Q: Can it work with other VFD brands?
A: No, designed exclusively for Allen‑Bradley 1336 series AC drives only.