MPT
700
43
5.1.4 Ground connection
To ensure safe operation of the MPT 700 burner cycle control unit, a ground (PE)
conductor with a cross section of at least 0.75mm² must be connected to contacts
32zbd (VDE0100). The ground conductor may form part of the AC feeder cable.
Ground connection:
Contacts:
PE
32zbd
Cross section:
≥
1.5mm
2
Cable type:
non-shielded
5.1.5 Power supply connections
For operation of the MPT 700 burner cycle control unit, a power supply with a
voltage of 95...240V, 50...60Hz must be connected to contacts 28zbd (N) and
30zbd (L). If possible, the power supply should be taken from a power supply
network for control equipment (class 3 or better).
Power supply connection 95...240VAC, 50...60Hz, 250mA:
Contacts:
N
28zbd
L
30zbd
Cross section:
≥
0.75mm
2
Cable type:
non-shielded
For switching outputs (section 5.1.8) a DC power supply (voltage 12...24V) must
be connected to contacts 2b+4b (+Vcc) and 10b+12b (GND). Depending on the
requirements for the switching outputs, either a non-voltage-controlled or a
voltage-controlled DC network (class 3 or better) may be used.
The DC power supply should be switched together with the mains voltage.
DC connection 12..24VDC, 1.1A:
Contacts:
+Vcc
2b+4b
GND
10b+12b
Cross section:
≥
0.75mm
2
Cable type:
non-shielded
Non-shielded cables with a conductor cross section of at least 0.75mm
2
and an
adequate voltage rating must be used for power supply connections.
