Commissioning - Buderus EM100 Instructions D'installation

120/230VAC 120/230VAC
230 VAC
Caption to the figure above and connection diagrams with
system schematics at end of document:
Protective 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 activation
(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) With the heat exchanger, T0 is the flow temperature sensor.
2) Observe coding switch position.
EM100 – 6721804147 (2019/10)
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
3
1 2 3 4 1 2 3
2
1
0
≤ 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
4

Commissioning

First make all electrical connections and then carry out the
commissioning!
▶ Observe the installation instructions for all components
and assemblies in the system.
▶ Only switch on the power supply if the coding switch is set up.
▶ If a control unit is connected, it is recommended to start the
configuration wizard.
NOTICE:
Risk of damage to system through pump failure!
▶ Fill and vent the system before switching it on so that the
1)
pumps do not run dry.
4 5 6 4 5 6
7 3 7
2
8
9 1 9
10 10
0
OC0
1 2 3
3 4
1 2 3 1 2 3
(+) (–)
0-10V PWM
IO1
OC0 OC0
8
0010029500-001
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