Series machinery
Recurring standard functions
The same function repeated across a machine range, where a simple device ordered repeatedly beats a configured one.
ConfirmConfirm the standard function set and quantity.
Safety relay
PNOZcompact
For the safety functions that repeat across every machine in a series, a deliberately simple device beats a configurable one. PNOZcompact covers E-STOP, safety gate and light barrier monitoring at PL e — and its 12 ms response time, printed on the front panel, shortens both the safety distance and the annual inspection.
E-STOP, gate, light barrierPL e / SIL CL 312 ms response timeResponse time on the front panel22.5 mm wide
12 msResponse time
PL eEN ISO 13849-1
SIL CL 3IEC 62061
PNOZcompactFamily range shown; device selected from the safety function
12 msQuick response time
PL eEN ISO 13849-1
SIL CL 3IEC 62061
22.5 mmHousing width
Why it is specified
Scope of the simple device
aims the family at manufacturers of production machines with high unit outputs and recurring standardised functions — and the benefits are all about repeatability.
Shorter safety distance
A quick response time of just 12 ms allows the protective device to be mounted closer to the hazardous movement.
Faster annual inspection
The response time is printed on the front panel, which saves time in the recurring annual ESPE inspection.
Simpler light barrier wiring
With PNOZ c2 the light barrier is supplied with voltage directly via the evaluation device, giving rapid and operationally safe installation.
Built for repetition
Aimed at production machines with high unit outputs and recurring standardised functions.
Applications
PNOZcompact is used
The manufacturer lists monitoring of emergency stop, safety gates and light barriers or light grids for this family.
Stop and guard
E-STOP and safety gates
The core functions on most production machines, evaluated to PL e with a defined reset behaviour.
ConfirmConfirm input devices and reset type.
Protective devices
Light barriers and light grids
Evaluation of light barriers and grids, with PNOZ c2 supplying the device directly and shortening the installation.
ConfirmConfirm the protective device and its supply.
Technical data
Selection parameters that matter
These are the values that decide the device. Contact configuration and supply vary across the family and belong to the selected order number.
The 12 ms response time is one term in the safety-distance calculation; the machine stopping time is the other and must be measured.
| Monitored functions | Emergency stop, safety gates, and light barriers or light grids |
|---|---|
| Performance level | For applications requiring PL e of EN ISO 13849-1 |
| Integrity level | For applications requiring SIL CL 3 claim limit of IEC 62061 |
| Response time | 12 ms |
| Response time marking | Printed on the front panel, to save time in the recurring annual ESPE inspection |
| Housing width | 22.5 mm |
| Light barrier supply | With PNOZ c2 the light barrier is supplied with voltage directly via the evaluation device |
| Scope | Covers the basic safety functions |
| Target application | Production machines with high unit outputs and recurring standardised functions |
The device covers the basic functions deliberately. Where functions interact, where diagnostics are needed, or where the design is expected to change, review PNOZsigma, myPNOZ or PNOZmulti 2.
Models
Variant decisions
The family is small by design. The decisions concern the function, the protective device and the supply arrangement.
Function
E-STOP or guard
The core devices for monitoring a stop command or a guard position.
- Level
- PL e
- Width
- 22.5 mm
PNOZ c2
Light barrier evaluation
Supplies the light barrier with voltage directly via the evaluation device, simplifying installation.
- Supply
- Via device
- Benefit
- Fewer wires
Response
12 ms
A quick response time that reduces the calculated distance from hazardous movements.
- Time
- 12 ms
- Marked
- Front panel
Series use
Repeat ordering
Aimed at high unit output machines, where the same device is ordered repeatedly.
- Fit
- Series machines
- Scope
- Basic functions
Accessories
Terminals, protective devices and output stage
The device is simple, so the accessory decisions are few — the protective device and the stopping element.
Protective device
Light barriers and grids
With PNOZ c2 the barrier is supplied directly by the relay, removing a separate supply run.
ConfirmConfirm the protective device and its current draw.
Output stage
Contactors and feedback loop
The relay drives the stopping element; feedback loop monitoring forms part of the safety function.
ConfirmConfirm stopping element and feedback arrangement.
Panel
Terminals and mounting
At 22.5 mm the device is compact; termination and rail space are the remaining panel decisions.
ConfirmConfirm panel width and termination preference.
Before quotation
Application review
PNOZcompact is chosen where the function is standard and repeats. If the machine needs interacting functions or diagnostics, a different device is the better answer.
Safety function
- Which function this relay evaluates — E-STOP, gate or light barrier
- Whether the function is standard and repeated across machines
- Required performance or integrity level
- Whether diagnostics are needed at the device
Protective device
- Type of light barrier or grid, if applicable
- Whether PNOZ c2 direct supply is wanted
- Measured machine stopping time for the safety distance
- Approach direction and mounting distance available
Outputs
- Contact type, count and switching load
- Stopping element for the function
- Whether feedback loop monitoring is required
- Required stop category
Panel and volume
- Available panel width
- Supply voltage
- Reset type and position
- Quantity per machine and expected annual volume
Related technologies
PNOZcompact sits in the architecture
It is the standard-function device. The moment functions start interacting or the machine design starts changing, the architecture should move up rather than accumulate devices.
PNOZ X for the broader function range
PNOZsigma where width is tight
myPNOZ for several linked functions
PNOZmulti 2 when diagnostics are needed
PSENopt light barriers and grids
Contactors with feedback loop