Buderus EM100 Installationsanleitung Seite 23

120/230VAC 120/230VAC
230 VAC
Caption to the figure above and connection diagrams with
system schematics at end of document:
Ground conductor
Connecting terminal designations:
230 V AC Mains voltage connection
BUS BUS system connection
BMS Building Management System with
0-10 V interface
HS Heat Source on BUS system
OE1-74 Mains voltage output, solenoid valve
OE1-75 Fault output (230 V)
PC0 Mains voltage output, pump (230 V)
IE0 Pump alarm output (default setting: N/O contact)
OP0 Pump on/off (output/potential-free contact ≤ 24 V),
coding position 3‒5: potential-free fault output
T0 Low loss header temperature sensor input
IO1-1(+),2(-)Feedback output for heat source power (0-10 V)
IO1-3(+),4(-)Input for heat source actuation
(setpoint value 0–10 V)
OC0 1-2 Output for pump control signal
(setpoint value 0-10 V/PWM)
OC0 1-3 Pump feedback input (pulse width modulation),
2)
optional
CON Control unit with BUS system (Controller)
MC Boiler control device (Master Controller)
MM 100 Heating circuit module (EMS/EMS plus)
EM100 Extension module
1) The heat exchanger sensor is T0 with the heat exchanger.
2) Observe coding switch position.
EM100 – 6721848668 (2022/05)
EM100
120/230 V AC
OE1 PC0
N L N L N 74 75 N 63
N L N L
M
PC0
230 VAC OE1 OE1
2)
≤ 24 V
IO1 OC0
1 2 3 4 1 2 3
≤ 24 V
IE0 OP0 T0 BUS
1 2 1 2 1 2 1 2
1 2
(+) (–)
IO1
IE0 OP0 T0 BUS
0-10 V 0-10 V
1)
4 5 6 4 5 6
3 7 3
2 8 2
1 9 1
10
0 0
OC0
1 2
3 4
1 2 3 1 2
(+) (–)
0-10V PWM
IO1
OC0 OC0
Installation 3
7
8
9
10
3
3
0010029500-001
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