Pressure sensing mat safety module
NT12D
• Safety Category 3 together with SM Safety
mats according to EN 954-1
• Redundant and self monitoring circuit
• Mat integrity monitoring
• Four wire input
• Feedback circuit for external contactors monitoring
• Manual or automatic restart
• Failure diagnosis by LEDs
• Approval: TÜV NORD
Product Description
Ordering Key
Pressure sensing mat safety
module in conformity with EN
954-1, EN 60904-1, EN 292-1,/2 and EN 1760-1. The module
has been designed to be
employed along with the SM..
Safety mat; this safety system
Housing
Application
Controlled Devices
Safety Outputs
Safety Category
constitute an effective and reliable safety package of Safety
Category 3. The module is provided with safety ouput contacts
with force guided relay contacts,
four wire input and manual or
automatic restart.
NT12 D
Electrical Specifications
Power supply
Power consumption
Safety outputs
Auxiliary outputs
Contact ratings
Resistive loads
AC1
DC12
Small inductive loads AC15
DC13
24 VAC ± 10% 50-60Hz /
24 VDC ± 10%
5 VA / 5 W
2 NO
-6 A @ 230 VAC
6 A @ 24 VDC
1.5 A @ 230 VAC
1.2 A @ 24 VDC
Time Specifications
Delay on energisation
Delay on de-energisation
Recovery time
Channel simultaneity
Safety output
contact fuse protection
Insulation voltage
Supply to input
Supply to output
Input to output
4 A fast or 1 A delayed
none
4 kV 1.2/50µs
4 kV 1.2/50µs
Pollution degree 2
Overvoltage category III
Environmental Specifications
2 sec ± 15%
≤ 150 ms (NT12D+SM)
≥ 150 ms
∞
Operating temperature
Storage temperature
0°C ... + 55°C
-25°C ... + 55°C
Mechanical Specifications
Protection degree terminals
Protection degree housing
Housing material
Housing type
Mounting
IP 20
IP 30
ABS
22.5 mm housing models
DIN rail
Specifications are subjected to change without notice (23.04.07)
Max cross section
of external conductors
Dimensions
Weight
2.5 mm2 flexible wire
4 mm2 rigid wire
22.5 x 84 x 100 mm
160 g
1
NT12D
Dimensions
22,5
84
84
100
Wiring Diagrams
Application
SM-.. safety mat
+24 Vdc/Vac
T11
T12 T21
T22
NT12D
V+
V-
Connection Sample
Connections
Terminal
A1
A2
S1-S2
NT12D
13-14
23-24
T11-T12
T21-T22
Function/Connection
+24 VDC or AC supply
GND or AC supply
START (automatic o manual)
and feedback input for
external contactors monitoring
First safety output (NO)
Second safety output (NO)
Safety mat layer 1 inputs
Safety mat layer 2 inputs
Front NT12D
2
Specifications are subjected to change without notice (23.04.07)