2
Operating instructions
Passive fieldbox PFB-IOP-4M12-IOP
EN
1.6 Warning about misuse
In the event of improper or unintended use or tampering, use
of the passive fieldbox could expose persons to danger or
cause damage to the machine or system components.
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden; the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
PFB-IOP-4M12-IOP
Option Description
PFB Passive fieldbox
IOP Evaluation side: IO parallel
4M12 4 device connections for M12 connector
IOP Device connection: IO parallel
2.2 Destination and use
The PFB-IOP-4M 12-IOP passive fieldbox is designed for the
connection of 4 electronic safety switchgear units with parallel IO signals
manufactured by SCHMERSAL. It serves to connect up to 4 safety
switchgear units in series.
To increase the safety functionality, more passive fielboxes can also be
connected in series.
With the PFM-IOP-4M-12-IOP passive fieldbox, the secure OSSD
outputs of the connected safety switchgear units are connected in
series and wired to a relevant safety-monitoring module.
The non-secure IO signals of the devices are wired in parallel to a
control system.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
2.3 Technical data
Standards: IEC 60947-1
Materials:
- Enclosure: polyamide / PA 6 GF
- Inspection window: polyamide / PACM 12
- Encapsulation: polyurethane / 2K PU
- Labelling plates: polycarbonate / PC
Mechanical data
Type of electrical connection: Connector socket /male connector
Connector:
- Device connections: M12 / 8-pole, A-coded
- Power: M12-Power / 4-pole, T-coded
- I/O signals: M12 / 8-pole, A-coded
Expansion torque of the plug connections:
- M12 connector: max. 1.5 Nm
- recommended for SCHMERSAL cables: 1.0 Nm
Fixing screws: 2x M6
Tightening torque of the fixing screws: max. 3.0 Nm
Ambient conditions
Ambient temperature: −20 °C … +65 °C
Storage and transport temperature: −25 °C … +70 °C
Relative humidity: 10 % … 95 %, non condensing
Resistance to shock: 30 g / 11 ms
Resistance to vibration: 5 … 10 Hz, amplitude 3.5 mm;
10 … 150 Hz, amplitude 0.35 mm / 5 g
Protection class: IP67 to IEC 60529
Protection class: III
Insulation values to IEC 60664-1:
- Rated insulation voltage Ui: 32 VDC
- Rated impulse withstand voltage Uimp:0.8 kV
- Over-voltage category: III
- Degree of pollution: 3
Electrical data
Supply voltage UB: 24 VDC -15% / +10%
(stabilised PELV mains unit)
Rated operating voltage Ue: 24 VDC
Operating current Ie:
- Fieldbox (external fuse protection required): 10 A
- Derating M12 power connector: 10 A to 55 °C
7 A to 65 °C
- Device connection: 0.8 A
(internal protection available)
- Safety outputs Y1 and Y2: 0.1 A
Device connection line fuse: Automatically resetting
fuse element 1.5 A
LED indications
1 green LED "Pwr": Supply voltage fieldbox
4 green LED "l": Input safety enable device connections 1 - 4
4 yellow LED "I": Input safety enable device connections 1 - 4
The IP67 protection class is only reached if all M12
connectors and blanking plugs, as well as the inspection
window are properly fastened with screws.
All fieldboxs have a good resistance to chemicals and oil.
When used in aggressive media (such as chemicals, oils,
greases and coolants in higher concentrations) the material
resistance must be checked in advance for compatibility
with the application.
