Electrical Installation; Pin Assignment Of The Male Socket On The Back Of The Pyrometer; Connector Pin J - LumaSense Technologies mpac IN 140/5-L Betriebsanleitung

IMPAC pyrometers IN 140/5 · IN 140/5-H · IN 140/5-L
4

Electrical Installation

The IN 140/5 is powered by a voltage of 24 V (possible range 14 to 30 V) DC or AC (48 to 62 Hz). With the
connection to the power the instrument operates immediately, the display shows the current temperature
reading. For switching off the instrument, interrupt the power
supply or unplug the electrical connector.
Directly after connecting the power supply the display shows the
internal firmware version for approximately 3 s. The green con-
trol light on the rear cover is switched on permanently to show
the operating state.
This control light is blinking as long as the laser targeting light is
switched on (only for instruments equipped with a targeting
light).
To meet the electromagnetic requirements (EMV), a shielded connecting cable must be used. The shield of
the connecting cable has to be connected only on the pyrometer's side. On side of the power supply (switch
board) the shield must be open to avoid ground loops.
LumaSense Technologies offers connecting cables, they are not part of standard scope of delivery. The
connecting cable has wires for power supply, interface, analog output, external laser switch and external
clear of maximum value storage via contact (see section 15, Reference numbers) and 12 pin connector.
The cable includes a short RS232 adapter cable with a 9 pin SUB-D connector for direct PC communication.
This adapter is not used in combination with RS485 interface.
4.1

Pin assignment of the male socket on the back of the pyrometer

Pin Color Indication
K white + 24 V power supply (or 24 V AC)
A brown
L green + I
– I
B yellow
H gray external switch for targeting light (bridge to K)
see 4.1.1: external clearing of maximum value storage
J pink
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)
Screen only for cable extension,
M orange
don't connect at the switchboard
4.1.1

Connector pin J

The connector pin J can be used for 2 different functions:
1) External clearing of the maximum value storage: If the clear time is set to "extern" (settings see 9.3 or
10.6), pin J can be used as input for external clearing of the maximum value storage. To clear the maxi-
mum value storage, connect pin J for a short time to pin K (power supply voltage).
2) 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).
8
0 V power supply
analog output
outp.
analog output
outp.
or hold function
Green
control light
Internal Firmware
version for
approx. 3 s
(side of male inserts)
Male socket
E F G
M
D
H
C L J
B A K
Pin-assignment