Electrical Connection - TECSYSTEM T-154 Instalación Y Programación

TECSYSTEM S.r.l ®
CH 1
13 14 15
1 2
ALARM
NOTE: when the unit is powered the fault relay 7-9 closes and it opens again in case of
fault condition
42
41
40
MEASURE SIGNALS TRANSPORT
All the transport cables of the Pt100 measure signals must absolutely:
• be divided from the power ones
• be realized with shielded cable with twisted conductors
• have a section of min 0,5 mm²
• be twisted if you have not any shield
• be firmly fixed in the terminal board
• have tinned or silvered conductors
All the serie "T" units have the sensors linearization with a max error of 0,5% v.f.s..
TECSYSTEM srl has realized a special cable for the measure signal transport with all the pro-
tection requirements in accordance with CEI Normes: mod. CT-ES
PROGRAMMING REHABILITATION IN CASE OF BLOCK (Prg no)
In the event program access is blocked the display will show SET and then display "noP". To
gain access, press the ENT key and return to normal operation.
Touch the PRG key and then, press and hold the TEST key for approximately 7 seconds
until the flashing PRG screen display ends, and the message nCH is displayed.
NOTE: this procedure removes the lockout feature. To block access again, this feature must
be reprogrammed.
18

ELECTRICAL CONNECTION

Pt100 SENSORS CONNECTION
CH 2 CH 3
16 17 18 19 20 21
RELAYS CONNECTION
3 4 5 6 7
TRIP FAULT
POWER SUPPLY
24-240 VAC-VDC
T154 protection relays
CH 4
22 23 24
10 11
8 9
FAN
Pt100
WHITE
RED
RED