LumaSense Technologies ISR 12-LO - Handbuch (Seite 9)

IMPAC pyrometers ISR 12-LO · IGAR 12-LO
8
4.1 Pin assignment for the connector on the bottom side of the pyrometer
Pin Color Indication
K white + 24 V power supply (or 24 V AC)
A brown 0 V power supply
L green + I
outp. analog output
B yellow – I
outp.
analog output
H gray external switch for targeting light (bridge to K)
J pink
see 4.1.1: operating mode contact, external
clearing of maximum value storage (bridge to
K) or output for dirty window monitoring
G red DGND (Ground for interface)
F black RxD (RS232) or B1 (RS485)
C violet TxD (RS232) or A1 (RS485)
D gray/pink B2 (RS485) (bridge to F)
E red/blue A2 (RS485) (bridge to C)
M orange
Screen only for cable extension,
don’t connect at the switchboard
4.1.1
Connector pin J
The connector pin J can be used for 4 different functions:
1) Operating mode contact: During the warm-up of the pyrometer (after connection to the power supply,
the LED display on the converter indicates “7777”) pin J is connected to the power supply voltage. This
voltage is connected by a relays switch (max. continuous current 0.4 A) to pin K (power supply voltage).
This relays switch opens when the warm-up is finished and the pyrometer is in operating mode. For that
reason this pin can be used as operating mode contact.
2) External clearing of the maximum value storage: When the pyrometer is in operating mode, pin J can
be used for external clearing of maximum value storage (see 9.3). To clear the maximum value storage,
connect pin J for a short time to pin K (power supply voltage).
The function “external clearing” is activated with the following conditions:
• Warm-up is finished (no display “7777“)
• The clear time is set to “extern“ (see 8 and 10.7).
• The lens contamination monitoring is switched off. This can be done via software InfraWin in “color-
bar“ window. The warning level “dirty window” must be set to 0% (see 10.8).
3) Hold function: when the hold function mode is activated the current temperature reading is frozen as
long as J and pin K are connected (see 9.3 clear time for the maximum value storage).
4) Lens contamination monitoring system: The pyrometers are equipped with a contamination monitoring
system. Contamination of lens or sighting window or dust in the sighting path of the pyrometer can inter-
fere the signal in such a high level that a correct temperature measurement will be impossible (this can
also happen if the object is smaller than the spot size of the pyrometer). To avoid wrong measurements in
advance, a warning signal can be set to a certain contamination level. If contamination reaches this level
(or at a certain too low signal level), a built-in relays (max. continuous current 0.4 A) connects pin J to pin
K (power supply voltage). The setting of the switch level (0 … 99%) can be done via software InfraWin in
“color-bar“ window. If the warning level “dirty window” is set to 0% (see 10.8) the lens contamination
monitoring system is switched off and pin J has the function “external clearing” of maximum value storage
(factory setting).
The lens contamination monitoring system is activated with the following conditions:
• Warm-up is finished (no display “7777“)
• The clear time is not set to “extern“ (see 8 and 10.7).
• The pyrometer is operating in „2-color mode“ (see 9.4, 10.7)
K A B
C
D
J
G F E
H M
L
Connector
Pin assignment
(side of male inserts)