Installation Instructions User guide
Table Of Contents
- Installation Instructions SensaGuard™ 18 mm Plastic Barrel—440N-Z21S16*, 440N-Z21S26*
- Troubleshooting
- Application Wiring Examples
- Application Wiring Examples

3
18 mm Unit with 30 mm Target
Wiring Diagram
8-Pin Unit
Recommended mating cable, 2 m (6.5 ft)—889D-F8AB-2.
Replace the 2 with 5 (5 m) or 10 (10 m) for standard cable lengths.
There must be a minimum spacing of 7 mm
(0.275in.) if actuator and sensor face approaches
laterally. This will prevent false triggering due to
the side lobe areas.
Pin Number Wire Color Signal
1 White Aux. Outputs
2 Brown +24V
3 Green NA
4 Yellow OSSD 2, +24V Input
5 Grey OSSD 1
6 Pink OSSD 2
7Blue0V
8 Red OSSD 1, +24V Input
0
5
10
15
20
25
30
35
-30
(-1.18)
-20
(-0.787)
-10
(-0.39)
010
(0.39)
20
(0.787)
30
(1.18)
Face to Face Distance—mm
Side Lobe Side Lobe
Assured Sensing
Distance
OFF OFF
ON
Lateral Misalignment Tolerance—mm (in)
Assured Sensing
Distance
OFF
IMPORTANT
4
7
6
8
1
5
2
3
Brown
White
Blue
Pink
Grey
Green
Red
Yellow
5-Pin Unit
Recommended cordset, 2m (6.5 ft) - 889D-F5AC-2. Replace the
2 with 5 (5 m) or 10 (10 m) for standard cable lengths.
Note: If the user does not require the auxiliary signal, a 4-pin
cordset (889D-F4AC-2) can be used.
Recommended patchcord for use with ArmorBlock® Guard
Safety I/O, 2 m (6.5 ft) - 889D-F4ACDM-2. Replace the 2 with
0M3 (0.3 m), 1 (1 m), 5 (5 m), or 10 (10 m) for standard cable
lengths.
Note: Do not use a 5-pin patchcord with the ArmorBlock.
Diagnostic
Unit Indicators (per IEC 60073)
Pin Number Signal
1+24V
2 OSSD 1
30V
4 OSSD 2
5Aux.
Device
Output
LED
State Status Troubleshooting
Off Not Powered NA
Red Not Safe, OSSD not active NA
Green Safe, OSSD active NA
Green
Flash
Power up test or OSSD inputs
not valid
Check 24V DC or OSSD inputs
(yellow and red wire)
Red
Flash
1 Hz Flash Recoverable Fault
4 Hz Flash Non-recoverable Fault
Recoverable fault —check
OSSD outputs are not shorted
to GND, 24V DC or each other.
Cycle power.
Refer to Technical Specifications (page 1) for
certification information and ratings.
15
2
4
3
IMPORTANT