API-670 compliant machinery protection system for large turbine-generator sets and TSI applications: 44 vibration channels per rack, redundant power and communication, Modbus/TCP.
VM-7 Series API-670 Machinery Protection System
VM-7 machinery protection systems meet the rigorous standards of API-670 and are ideally suited for Turbine Supervisory Instrumentation (TSI) applications on large utility turbine-generator sets.
Digitally connect the VM-7 to infiSYS or configure alarm relays via Boolean logic. A rack holds up to 44 vibration channels (11 four-channel cards) or 66 temperature channels (11 six-channel cards). Each monitor module has 6 relays; the VM-721B 18-channel relay module works with any combination of channels in the rack.
- API-670 and CE Directive compliant
- Redundant power supply and communication — no monitoring disruption on power loss
- Agency approvals — CSA, ATEX
- Communications — 4–20 mA (standard), Modbus/TCP (optional)
- Monitoring cards with onboard relays
- 16 vibration parameters with only four modules
- Buffered outputs — front panel BNC, rear terminal strip
- Up to 44 vibration channels per rack
- 1x tracking module for aero-derivatives
Technical Specifications
| Standard | API-670 |
|---|---|
| Channel capacity | 44 vibration or 66 temperature channels / rack |
| Relays | 6 relays / monitor module; VM-721B 18-channel relay module |
| Communication | 4–20 mA, Modbus/TCP, Modbus/RTU |
| Modules | Power supply, phase marker, communication, monitor, temperature, relay |
| Approvals | CE, CSA, ATEX |