Swinging guards
Hinged access doors
Hinged doors on cells where the machine continues to move after the stop command, and the door must be held until standstill.
ConsiderHandle module and escape release.
Safety locking device
PSENmlock
Where hazardous movement continues after the stop command, monitoring the guard is not enough — it has to stay shut until the hazard has actually ended. PSENmlock provides safe interlocking and safe guard locking in one device, both rated up to PL e / SIL 3, with a 7500 N holding force for heavy doors.
Safe interlocking to PL e / SIL 3
Safe guard locking to PL e / SIL 3
7500 N holding force
IP65 / IP67 / IP69
Coded versions
7500 NSafe holding force
30 NIntegrated latching force
PL e / SIL 3Interlocking and locking
PSENmlockShown with handle module; variants differ by coding and connection
7500 NSafe holding force
PL e / SIL 3Interlocking and guard locking
3 sidesLEDs and auxiliary release
SDDSafety Device Diagnostics capable
Why it is specified
PSENmlock provides
The distinguishing point is that both the interlocking and the locking functions are safety-rated, which is what allows the device to be used for personnel protection rather than process protection alone.
Both functions safety-rated
Safe interlocking up to PL e / SIL 3 and safe guard locking up to PL e / SIL 3, in one product.
High holding force
Up to 7500 N prevents heavy guards from being pulled open unintentionally.
Escape release option
An optional escape release allows use on accessible gates to machines with poorly visible areas.
Diagnostics on 3 sides
LEDs on three faces of the housing, so status is readable however the device is mounted.
Applications
PSENmlock is used
The device suits both swinging and sliding guards, and is frequently combined with local operator controls at the access point.
Sliding guards
Sliding access doors
Sliding guards where alignment varies over life and a robust locking arrangement is needed rather than a light interlock.
ConsiderLatching force and actuator alignment.
With local controls
Operator commands at the gate
Combining the locking device with a gate operating unit so the request to enter, stop and reset are issued at the access point.
ConsiderPITgatebox, with PITreader where authentication is required.
Technical data
Selection parameters that matter
The manufacturer states that PSENmlock meets the requirements of ISO 13849-1, EN IEC 62061, IEC 61508 and EN ISO 14119. The values below are the ones that decide the variant.
IP69 applies subject to the cable being protected against high-pressure cleaning, per the manufacturer product information.
| Standards | ISO 13849-1, EN IEC 62061, IEC 61508, EN ISO 14119 |
|---|---|
| Safe interlocking | Up to PL e / SIL 3 |
| Safe guard locking | Up to PL e / SIL 3 |
| Safe holding force | Up to 7500 N |
| Latching force | Integrated latching force of 30 N |
| Coding versions | Coded, fully coded, unique fully coded |
| Product types | Basic versions, and series connection versions with or without power reset |
| Protection type | IP65 / IP67 / IP69* |
| Connection | M12 8-pin and M12 12-pin, pigtail |
| Diagnostics | LEDs on 3 sides of the housing; SDD-capable |
| Auxiliary release | Available on 3 sides |
| Emergency release | Available; cannot be used on versions with automatic reset |
Holding force is not the same as personnel restraint in every case. The required locking arrangement, escape provision and release concept follow from the risk assessment for the specific guard.
Models
Variant families
Variants differ by coding level, connection arrangement and whether devices are intended for series connection. Confirm the exact order number against current manufacturer data.
Basic versions
Single-device installation
Standard arrangement for one guard evaluated directly by a safety relay or controller input.
- Holding force
- up to 7500 N
- Connection
- M12 8-pin
Series connection
With or without power reset
Versions intended for connecting several devices in series, available with or without power reset behaviour.
- Diagnostics
- SDD-capable
- Connection
- M12 12-pin
Coding level
Coded / fully coded / unique
Three coding levels, selected from the manipulation risk and the requirements of EN ISO 14119 for the application.
- Levels
- 3
- Standard
- EN ISO 14119
Release options
Auxiliary and escape release
Auxiliary release available on three sides; escape release integrated into the handle module or fitted as a separate accessory.
- Auxiliary
- 3 sides
- Escape
- Optional
Accessories
Handle modules, releases and diagnostics
Most PSENmlock projects need at least one accessory decision alongside the device itself.
Mechanical
Handle module
The door handle module provides the operating handle at the guard and can carry the integrated escape release.
ConfirmHanding, door thickness and whether escape release is required.
Emergency provision
Escape release
Integrated in the handle module or supplied as a separate accessory, for accessible gates and machines with poorly visible areas.
ConfirmWhether a person can be inside the guarded area.
Diagnostics
Series connection with SDD
PSENmlock is SDD-capable, so device-level diagnostics can be retrieved from a series-connected arrangement instead of a single combined signal.
ConfirmNumber of devices and the diagnostic route to the controller.
Before quotation
Application review
Locking devices are specified from the hazard and the door hardware together. These points determine the variant and the accessories.
Hazard and run-down
- Measured time for hazardous movement to stop after the command
- Whether locking protects personnel, the process, or both
- Whether a person can be inside the guarded area
- Target performance level, if determined
Door hardware
- Swinging or sliding guard, and door weight
- Handing, door thickness and frame arrangement
- Whether a handle module is required
- Alignment tolerance and any door sag
Electrical and diagnostics
- Single device or series connection, and the device count
- Whether SDD diagnostics are to be used
- M12 8-pin or 12-pin connection, and cable length
- Existing safety controller and spare safe inputs
Coding and environment
- Required coding level under EN ISO 14119
- Cleaning regime and whether IP69 is required
- Whether reset is manual, monitored or automatic
- Quantity per machine and total quantity
Related technologies
PSENmlock sits in the architecture
The locking device holds the guard and reports its state. Whether it may unlock depends on the machine actually being safe, which is established elsewhere in the architecture.
PNOZ relay for a bounded function
PNOZmulti 2 for several guards
PNOZ s30 standstill before release
PITgatebox for local commands
PITreader for authorised access
PSENslock 2 where process protection suffices