Rational SCC Line, Training Manual

Page: 15 / 186

-15-
S C
M
Mode: Finishing
Temp. range
30-300°C (86-572°F)
Function Step
Select Finishing
(Recom. Temp. 100-140°C (212-284°F))
Select time or core temperature
Close cabinet door
Check water level inside
steam generator
Preheat steam generator,
if B5 is below 85°C (185°F);
Timer starts after successful preheating
Hot Air supply
Electric units: 12 sec on - 6 sec off
Gas units:
30 sec on - 15 sec off
Steam supply
Electric units: 6 sec on - 12 sec off
Gas units:
15 sec on - 30 sec off
Quenching (set to 70°C/158°F)
R esponsible sensor
Reed switch S3
Level electrode S2 in-
side Steam Generator
Thermocouple B5 inside
Steam Generator
Logic on PCB
Cabinet sensor B1
Quenching sensor B2
(Steam Control)
Quenching sensor B2
Signal
Door open: 12VDC X27:(1-2)
Door closed: 0VDC X27:(1-2)
X12:(1-4) > 2VAC => no water
X12:(1-4) ~ 0VAC => water
SSR active: 12VDC X24:(1-2)+(5-6)
SSR not act: 0VDC X24:(1-2)+(5-6)
Gas units:
Bus signal
SSR active: 12VDC X24:(7-8)
SSR not act.: 0VDC X24:(7-8)
Gas units: Bus signal
SSR active: 12VDC X24:(1-2)+(5-6)
SSR not act.: 0VDC X24:(1-2)+(5-6)
Gas units:
Bus signal
B2 above set Temp.: Y2 active
B2 below set Temp.: Y2 not active
Remark
Solenoid Y1 energizes when no
water, 230VAC, X19:(1-3)
Heating off,
if B5 > 180°C (356°F)
Blinking dot in timer
Hot air supply active, until
set temperature is reached
Steam saturation is calculated
by quenching duration and rate
Y2 active: 230VAC X19:(2-4)
Y2 not act.: 0VAC
X19:(2-4)
1
2
3
4
5
6
7
8
9
NOTE: For initial heating of cabinet => alternately energy supply of Hot Air and Steam (Electric 12/6 sec, Gas 30/15 sec)
F
Note:
Below 100°C (212°F) fan at lowest speed when no energy required for longer than 2 minutes.