1-8
Chapter 1. OVERVIEW
Terminal block signals
z Subbase terminal block
The table below describes the terminals on the subbase.
Terminal No. Description Rated
1 Model AUD300C/500C terminal F (blue)
2 Model AUD300C/500C terminal G (yellow)
3 Unused
4 Unused
5 Unused
6 Unused
7 Model AUD300C/500C shutter (white) 24 V DC 150 mA
8 Model AUD300C/500C shutter (white)
9 External reset input
10
11 Alarm output contact 75 VA max.
12
13 Power supply (H) 100/120/200/230 V AC
50/60 Hz
(depending on model No.)
14 Power supply (G)
15 Start contact input Contact resistance 100 Ω
max.
16 Start contact input
17 Interlock 100/120/200/230 V AC
50/60 Hz
Contact resistance 100 Ω
max.
18 Interlock
19 Ignition transformer 300 VA max. (cos φ = 0.5)
20 Main valve 200 VA max. (cos φ = 0.5)
21 Intermittent pilot 200 VA max. (cos φ = 0.5)
22 Interrupted pilot 200 VA max. (cos φ = 0.5)
23 Flame monitor output 75 VA max. (cos φ = 0.5)
24 Flame monitor output
z Flame voltage terminals
The table below describes the flame voltage terminals on the front panel.
Terminal No. Description Rated
+ Flame voltage output (+) 0 to 5 V DC *
- Flame voltage output (-)
* The flame voltage may reach approx. 7 V during self-discharge.
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