Logika Technologies Inc. Model HMD-SM Operator’s Manual
Rev 2.1 Dec-
13
Web
:
www.logikatech.com
Phone
: 905-829-5841
Fax
: 905-829-8787
:
P a g e
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Static Transistor Output-
•
PNP: Terminal 4B White, 24VDC on detect, maximum current 100 mA
•
NPN: Terminal 4A Black, 0VDC on detect, maximum current 100mA
•
Output Response time:
o
HMD-SM-10: 1ms
o
HMD-SM-30: 2ms
o
HMD-SM-50: 4ms
Relay Output-
Single pole double throw contacts, contact capacity rating 250VAC/1A or
24VDC/1A, relay closes time 7.5ms, relay releases time 3ms.
•
Terminal 5C White/Orange: NC, Open = detect
•
Terminal 5B White/Blue:
NO, Closed = detect
•
Terminal 5A White/Purple: COM
Sensor Diagnostics Outputs-
Relay and voltage signals to indicate sensor conditions. All the
outputs voltages are referred to 0VDC (Figure 4.1, Terminal 3B).
1.
Control Output (Figure 4.1, Terminal 2A Green):
Normal Output:
24VDC
Diagnostic Alarm Output:
0VDC, indicated if one or more occurs:
•
Dust or vapor interference on glass
•
Target temperature drop
•
Signal saturation
2.
Alarm Output (Figure 4.1, Terminal 4C):
Normal Output:
24VDC
Alarm output:
0VDC indicated if one or more occurs:
•
Power input loss
•
Scanning motor runs abnormally
•
The temperature inside the enclosure is higher than 55
o
C (130
o
F)
3.
Signal Amplitude Output (Figure 4.1, Terminal 3C): 0-13.5 VDC analog output, proportional
to the photocell output signal. This signal may indicate that the sensor’s protective lens
glass needs to be cleaned or the sensor’s sensitivity needs to be increased. Signal amplitude
output is influenced by:
•
Sensor installation environment and location
•
Target size
•
Target temperature
•
Distance between the sensor and the target
•
Vapor in the field
•
Dust on the Lens
•
Sensitivity Adjustment Setting
