Ascon tecnologic K31 Engineering Manual

K31
CONTROLLER AND
MINI-PROGRAMMER
Engineering Manual
20/10 - Code: ISTR_M_K31-_E_10_--
Ascon Tecnologic S.r.l. a socio unico
Viale Indipendenza 56, 27029 Vigevano (PV) - ITALY
Tel.: +39 0381 69871/FAX: +39 0381 698730
Website: www.ascontecnologic.com
e-mail: info@ascontecnologic.com
1 OUTLINE DIMENSIONS (mm)
1.1 Dimensions
78
U
P
Brackets
1.2 Mounting requirements
This instrument is intended for permanent installation, for in-
door use only, in an electrical panel which encloses the rear
housing, exposed terminals and wiring on the back.
Select a mounting location having the following characteristics:
1. It should be easily accessible;
2. There are minimum vibrations and no impacts;
3. There are no corrosive gases;
4. There are no water or other fluids (i.e. condensation);
5. The ambient temperature is in accordance with the
operative temperature (0... 50°C);
6. The relative humidity is in accordance with the instru-
ment specifications (20... 85%);
When the maximum front protection (IP65) is desired, the
optional screw type bracket must be mounted (see the
"How to Order" paragraph).
Ascon Tecnologic S.r.l. - K31 Line - ENGINEERING MANUAL - PAG. 1
5.5 64
71
34 34
2 CONNECTION DIAGRAM
PTC-NTC
Pt100
TC/mV
SSR: 10mA/10VDC
Power
supply
2.1 General notes about wiring
1. Do not run input wires together with power cables.
2. External components (like zener barriers, etc.) con-
nected between sensor and input terminals may cause
errors in measurement due to excessive and/or not bal-
anced line resistance or possible leakage currents.
3. When a shielded cable is used, the shield should be con-
nected to ground at only one side.
4. Pay attention to the line resistance; a high line resist-
ance may cause measurement errors.
11
2.2 Inputs
2.2.1 Termocouple Input
+
1
-
2
External resistance: 100 W max., maximum error 0.5% of span.
Cold junction: automatic compensation between 0... 50°C.
Cold junction accuracy: 0.1°C/°C after a warm-up of 20 min-
utes.
Input impedance: > 1 MW.
Calibration: According to EN 60584-1.
Note: For TC wiring use proper compensating cable prefer-
able shielded.
2.2.2 Infrared Sensor Input
+
1
-
2
External resistance: Not relevant.
Cold junction: Automatic compensation between 0... 50°C.
Cold junction accuracy: 0.1°C/°C.
Input impedance: > 1 MW.
0... 50/60 mV; 0... 1 V; 0/1... 5 V; 0/2... 10 V
0/4... 20 mA active
4... 20 mA active
Ext.
gen.
4... 20 mA passive (2 wires)
DI1 DI2
B
RELAYS: Out-1, 2: 8A-AC1 (3A-AC3)/250VAC
RELAYS: Out-3, 4: 5A-AC1 (2A-AC3)/250VAC
OUT4 OUT3 OUT2
Exergen
RS485
GND A
OUT1