Version 2.04
| Optidrive ODP-2 Solar Pump User Guide |
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4.10. EMC Compliant Installation
4.10.1. Recommended installation for EMC compliance
U V W
U V W PE
U V W PE
360° bonding
EMC cable gland
(Best-Practice)
Shield to Motor
Chassis)
Whenever possible use Shielded motor cables-
maintaining shield as far as possible along the cable.
X
≥100mm
Twisted-Pair shielded cables for analog control and
motor feedback signals.
Metal Back-Panel
4.10.2. Recommended Cable Types by EMC Category
Category
Supply Cable Type Motor Cable Type
Control Cables
Maximum Permissible
Motor Cable Length
C1
678
Shielded
1
Shielded
1,5
Shielded
4
1M / 5M
9
C2
8
Shielded²
Shielded
1, 5
5M / 25M
9
C3
8
Unshielded
3
Shielded
2
25M / 100M
9
1.
A screened (shielded) cable suitable for fixed installation with the relevant mains voltage in use. Braided or twisted type screened
cable where the screen covers at least 85% of the cable surface area, designed with low impedance to HF signals. Installation of
a standard cable within a suitable steel or copper tube is also acceptable.
2.
A cable suitable for fixed installation with relevant mains voltage with a concentric protection wire. Installation of a standard cable
within a suitable steel or copper tube is also acceptable.
3.
A cable suitable for fixed installation with relevant mains voltage. A shielded type cable is not necessary.
4.
A shielded cable with low impedance shield. Twisted pair cable is recommended for analog signals.
5.
The cable shield should be terminated at the motor end using an EMC type gland allowing connection to the motor body through
the largest possible surface area. The shield must also be terminated at the drive end, as close as practically possible to the drive
output terminals. Where drives are mounted in a steel control panel enclosure, the cable screen may be terminated directly to the
control panel backplate using a suitable EMC clamp or gland fitted as close to the drive as possible. The drive earth terminal must
also be connected directly to this point, using a suitable cable which provides low impedance to high frequency currents. For IP55
and IP66 drives, connect the motor cable shield to the gland plate or internal ground clamp.
4
Elec
trical Installation
