Safety monitoring module is a two or one channel (depends on model) safety switching device with self-monitoring on each ON-OFF cycle. They conform to EN 60204-1 and are equipped with positively driven relays. They are intended for monitoring connected switching elements on separating safety devices and generating a safety oriented output signal (enable). Depending on the design, separating safety devices may include light curtains, safety doors interlocks, safety mats, safety laser scanners, two hand controls, etc.
General Safety Company can offer a full range of Safety Monitoring Modules. Of course they meet all the safety requirements up to safety category 4 acc. to EN 954-1, as well as satisfying the EN 60204-1 and can be used in Control Reliable Safety Circuits as per CSA Z432-04 Standard. All Safety Monitoring Modules are CSA certified or cUL listed.
| Model | Safety Category | Function | Output Circuit | Supply Voltage |
| SNO 4003K | 3 NO undelayed | 24VAC/DC, 120VAC | ||
| NA13D | 3 NO undelayed | 24VAC/DC, 120VAC | ||
| SNO 4063K | 3 NO undelayed | 24VAC/DC, 120VAC | ||
| SNO 4063KM | 3 NO undelayed | 24VAC/DC, 120VAC | ||
| SNO 4063KR | 3 NO undelayed | 24VAC/DC, 120VAC | ||
| SNV 4063KL | 2 NO undelayed 1 NO OFF delayed |
24VDC | ||
| SNV 4063KP | 2 NO undelayed 1 NO ON delayed |
24VDC | ||
| SNZ 4052K | 2 NO undelayed | 24VAC/DC, 120VAC | ||
| SNE 4003K | Expansion Module | 3 NO undelayed | 24VDC | |
| SNE 4004KV | Expansion Module | 4 NO OFF delayed | 24VDC | |
| SNE 4008S | Expansion Module | 8 NO undelayed | 24VAC/DC |
Legend
| Safety Category 2 To EN-954-1 |
Emergency Stop | OSSD Compatible Light Curtain |
Controlled Stopping To Stop Category 1 |
||||
| Safety Category 4 To EN-954-1 |
Safe Gate | Safety Mat | Door Locking Time delay Monitoring |