WIDE Automation NC96 MAT User manual

Operating instructions for safety module mod. NC96 MAT
WIDE Automation S.r.l._Via Malpasso, 1340 I-47842 San Giovanni in Marignano [RN] Italia_Tel. [phone]_Fax [phone]_www.wideautomation.it
Subject to technical changes without notice, no responsibility will be assumed for every detail. ©WIDE AUTOMATION S.r.l. – NC96 Operating Instruction (EN) rev.2_08/16 – Pag. 1/2
Description
The NC96 MAT control unit has been designed for the control of pressure
sensitive mats and safety edges in accordance with EN ISO 13856-1: 2013,
EN ISO 13856-2: 2013, EN 60204-1: 2006 + A1: 2009, EN ISO 13849-1:
2015.
The operation of this module is based on the use of guided contact safety
relays.
Safety precautions
Pressure sensitive safety mats and edges perform a personal protective
function. Incorrect installations or manipulations can cause serious personal
injury.
Pressure sensitive safety mats and safety edges must not be bypassed
(shorting the contacts), moved, removed or otherwise rendered ineffective.
The machine manufacturer or installer is responsible for correct and safe
operation.
The auxiliary exchange output NC 31/32 is optically insulated and provides a
signal on the status of the device; therefore, it must not be used in any way
as a safety output.
The NC96 MAT module is not suitable for operation in the presence of
ionizing and non-ionizing radiation (X-rays, microwaves, lasers, ultraviolet
rays) (EN 60204-1: 2006, §4.4.7).
Operation
The NC96 MAT safety control unit is able to control the status of pressure-
sensitive safety mats and edges: the output is activated automatically only if
the two inputs are closed and if no operator is in the area covered by the
mat. (edge). When the safety device is pressed, the control unit opens the
safe outputs 13-14 and 23-24.
Reset is possible only once the device is no longer pressed, in accordance
with the requirements of EN ISO 13856-1: 2013 (Appendix A) and EN ISO
13856-2: 2013 (Appendix A).
The NC96 MAT can only be used with automatic start (reset); to configure
the system with monitored manual start (reset) it is necessary to use the
NC95 control unit.
The opening of even a single input connection determines a safety situation,
placing the safe outputs in the open state and preventing their re-closing
even after the contact has been re-closed.
The system composed of NC96 MAT + carpet or pressure sensitive edge
reaches the safety category 3 according to EN ISO 13849-1: 2015 only if
(see connection drawing):
- two relays are used to interrupt the load, each of which connected to an
output of the control unit.
- the relay contacts controlled by the control unit are inserted in the feedback
ring.
Safety is guaranteed by the use of guided contacts, redundancy and the
interconnection scheme of the contacts.
It is the responsibility of the user to choose suitable components for
safety applications, such as guided contact relays.
Installation
The installation must be carried out only by authorized personnel.
The NC96 MAT control unit must be installed in a suitable area of use
(electrical panel, junction box, at least IP54). The control unit is installed by
attaching it to a standard 35mm DIN omega rail.
Electric connections
Electrical connections must be made only by personnel authorized in
accordance with EN 60204-1: 2006.
All electrical inputs must be isolated from the main power supply or through a
transformer with separate windings in accordance with EN IEC 61558-2-6
with limited output voltage in the event of a defect, or by an equivalent
removable mechanism.
The power supply must be permanently connected using a cable with a
maximum length of 10m; safety mat must be connected to the unit with
cables with a maximum length of 30m.
The relay outputs have a maximum current of 3A; the power supply
connected to these outputs must be protected against overcurrent by
devices suitable for the loads to be protected.
All output contacts must have an adequate protection circuit for inductive and
capacitive loads.
If a standard power supply is used, all inductive and capacitive loads (e.g.
relay contacts) connected to the power supply must be connected to an
appropriate interference suppressor.
Maintenance and checks
The correct operation of the NC96 MAT control unit must be periodically
checked by the operator and/or by the control circuit of the machine in which
it is used periodically (at the beginning of each shift) by checking the
following:
- correct switching
- secure attachment of components
- correct fixing of the connections.
The device monitoring function is performed at each intervention of the
device itself.
In case of failure or wear, the damaged system must be replaced.
Warranty coverage disappears in the following circumstances:
- if the instructions are not followed
- non-compliance with safety regulations
- installation and electrical connection not carried out by authorized
personnel
- failure to carry out functional checks.
Setup
If the control unit does not seem to work when the supply voltage is applied
(the green POWER LED does not light up), the unit must be returned sealed
to the manufacturer. Check if the safety outputs switch (see LED table) by
activating the inputs.

Operating instructions for safety module mod. NC96 MAT
WIDE Automation S.r.l._Via Malpasso, 1340 I-47842 San Giovanni in Marignano [RN] Italia_Tel. [phone]_Fax [phone]_www.wideautomation.it
Subject to technical changes without notice, no responsibility will be assumed for every detail. ©WIDE AUTOMATION S.r.l. – NC96 Operating Instruction (EN) rev.2_08/16 – Pag. 2/2
LED indications
FUNCTION
LED
Colour
Status
Operating voltage
Power
Green
On
Output 13-14 and 23-24: OPEN
Output 31-32: CLOSED
CH1, CH2
Green
Off
Output 13-14 and 23-24: CLOSED
Output 31-32: OPEN
CH1, CH2
Green
On
Dimensions
TECHNICAL DATA
Parameter
Value
Container Material
PA
Dimensions
114,5 x 99 x 22,5 mm
Weight
160 g
Operating environmental conditions
Temperature: -5 … +55 °C
Relative Humidity: 4% … 100%
Pressure: 86 … 106 kPa
Environmental storage conditions
Temperature: -25 … +70 °C
Relative Humidity: 5% … 95%
Pressure: 86 … 106 kPa
Degree of protection (IEC 60529)
IP20
Degree of contamination
2
Assembly
35mm DIN standard Rail
Connection Type
Screw terminals
Supply Voltage
24V -15%/+10% (AC 50 ÷ 60 Hz)
Internal Fuse on the power supply
630mA fast fuse
Current consumption
@24Vdc: 25mA min, 70mA max; @24Vac: 110 min, 220 Max
Safety Output Switching Voltage
240Vac max
Switching current AC-1 / Electrical Life
3A (AC/DC) (safety outputs) / > 105 cycles
Minimum Switching current @10V
10mA
Safety Output Switching Power
720VA max
Front View
External fuse at the Output
4A gG (according IEC EN 60269-1)
Safety Output Terminals
13 -14, 23 – 24
Auxiliary Output Terminals
31 - 32 NC (optocoupled)
Usage Category / Electrical Life
(SAFETY Outputs)
AC-15: 1.4A/240V (inductive load, cosφ=0.3)/105cycles
DC-13: 1A / 24V / 105 cycles
Auxiliary NC Output parameters
max: 60 mA @ 24 Vdc
Useful Lifetime
10 years
OFF state response time
20mS
Safety Category and PL
(EN ISO 13849-1:2015)
CAT. 3
PL-d
PL-e
PL-e
nop (number of operation / year)
(load: AC-15: 1,4 A / 250 Vac)
66000
31900
19000
MTTFd (years)
30
62
100
PFHd
2.65x10-7
8.84x10-8
4.29x10-8
TM
20 years
Vibration Resistance
EN ISO 13856-1:2013, EN ISO 13856-2:2013
Mechanical Life (# of cycles)
107
EMC Compliance
EN 61326-3-1:2011, EN 55011:2011
In accordance with
EN 60204-1:2006+A1:2009, EN ISO 13849-1:2015,
EN ISO 13856-1:2013, EN ISO 13856-2:2013
Approvals
TÜV IT 0948 15 MAC 0061 B
UL CERTIFICATION REQUIREMENTS
Power Source (input)
Input Terminals
Voltage
Max Current
A1 – A2
24 Vdc/ac
220mA / 70mA
Auxiliary Output (SAFETY)
Output Terminals
Contacts Type
General Use or resistive
Pilot Duty
13 – 14 / 23 – 24
NO
3A/240Vac Res
1.4A/240Vac
1A/24Vdc
Signalling Outputs (SIGNAL)
Output Terminals
Contacts Type
Nom. Ratings
31 – 32
NC
60mA/24Vdc
Environmental Ratings
Max. Surrounding Air Temperature: 55°C
Pollution Degree: 2
Environmental designation
Open type equipment
Installation Notes
Use with min. 60°C copper (CU) conductor only
Terminal tightening torque: 5-7 LbIn (0,56-0,79 Nm)