LumaSense Technologies IS 320 - Manual (Page 11)

IS 320 • IGA 320 Manual General 11
3 Controls and Installation
3.1 Electrical Installation
The pyrometers are powered by a voltage of 24 V DC (possible range 10 to 30 V, ripple < 0.5 V).
The instrument needs no warm up time and is ready for use immediately. To power the
instrument off again, interrupt the power supply or unplug the electrical connector.
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 offers connecting cables for order separately; they are not part of standard scope of
delivery (see Chapter 9, Reference Numbers). The LumaSense connecting cable has wires for
power supply, interface, analog output, switch contact and external clearing of the maximum
value storage via contact and an 8 pin connector.
3.1.1 Pin Assignment of the Male Socket on the Back of the Pyrometer
Pin Color Indication
1 white + 24 V power supply
2 brown 0 V power supply
3 green + I
outp.
analog output
4 yellow – I
outp.
analog output
5 grey
Switches on and off LED targeting light
(via push button) (bridge to +24 V)
6 blue switch contact (reference point 0 V)
7 violet A1
8 black B1
7 red/blue A2 (bridge to A1)
8 gray/pink B2 (bridge to B1)
orange
Screen only for cable extension,
don’t connect at the switchboard
3.1.2 Connecting the pyrometer to a PC
The pyrometers are equipped with a serial RS485 interface for connecting to a PC. With RS485,
long transmission distances can be realized and several pyrometers can be connected in a bus
system. If RS485 is not available on the PC, it can be facilitated with an external converter which
converts the RS485 to RS232 or USB for a standard connection to a PC.
Note: When using an RS485 RS232 converter, ensure that the converter is fast
enough to receive the pyrometer’s answer to an instruction of the master. Most of the
commonly used converters are too slow for fast measuring equipment. It is
recommended that customers use the RS485
RS232 converter -7520 (ref. no.
3 852 430) or the RS485 USB converter “USB nano“(ref. no. 3 852 600).
In the case of a slow RS485 connection, it is possible to set a wait time on the pyrometer (e.g. via
the “Test” field of the InfraWin software) which delays the response of a command to the
pyrometer (see also Section 3.1.3, Wait Time tw).
Pin assignment
(side of male
inserts)
Male socket
2
3
4
5
1
7
6
8