38
7 ND90 71 en
9.1.2 Markings
The limit switch is provided with an identification plate, see
Fig. 46 and 47. Identification plate markings include:
Type designation
Electrical values
Enclosure class
Temperature range
Conduit entry
Serial number
Manufacturing serial number
The type designation is described in Chapter 15.
9.1.3 Technical specifications
9.1.3.1 ND9000_/D__
Proximity switch:
Inductive, Dual Module
2 sensors,
Normally Open
(33)
Normally Closed
(44)
Electrical values:
SST Dual Module
(33)
Indications:
Target on sensor = LED on
Target off sensor = LED off
Operating voltage: 8–125 V DC; 24–125 V AC
Maximum voltage drop:
6.5 V / 10 mA
7.0 V / 100 mA
Current ratings:
Max inrush
2.0 A / 125 V DC / V AC
Max continuous
0.3 A / 125 V DC / V AC
Minimum on current 2.0 mA
Leakage current
<0.15 mA with DC voltage
<0.25 mA with AC voltage
Namur Dual Module
(44)
Indications:
Target on sensor = LED off
Target off sensor = LED on
Operating voltage: 6–29 V DC
Current ratings:
Target on (LED off ) <1.0 mA
Target off (LED on) >3.0 mA
Must use intrinsically safe repeater barrier.
Namur sensors conform to DIN 19234 standard.
Number of switches: 2
SIL:
Usable up to SIL3 acc. to IEC61508
Fig. 43
ND92/93_H/I__, ND92/93_F/I__ and
ND92/93_P/I__ layout
Fig. 44
ND92/93_H/K0_, ND92/93_F/K0_ and
ND92/93_P/K0_ layout
Fig. 45
ND92/93_F/B06 and ND92/93_P/B06 layout
2 proximity
switches
terminals
M20 x 1.5
2 cams
ground
potential
equalization
2 micro switches
terminals
M20 x 1.5
2 cams
ground
potential
equalization
2 micro switches
terminals
M20 x 1.5
2 cams
ground
potential
equalization
Fig. 46
Example of the identification plate, ND9100
Fig. 47
Example of the identification plate, ND9200