6 Mounting
Maschinenfabrik Reinhausen GmbH 2020 876385142/08 EN ETOS
®
ED
Suitable equipment includes isolating devices in accordance with IEC
60947-1 and IEC60947-3 (e.g. circuit breaker). When selecting the circuit
breaker type, the properties of the relevant circuits (voltage, maximum cur-
rents) must be observed. The following should also be noted during installa-
tion:
▪ It must be easy for the operator to access the isolating device
▪ The isolating device must be labeled for the device and circuits to be iso-
lated
▪ The isolating device may not be a part of the power line
▪ The isolating device may not interrupt the main protective conductor
Unless specified otherwise, the connections for the supply circuits must have
a conductor cross-section of at least 2.5 mm
2
(16 AWG). Check applicable
standards and directives to ensure that the specified minimum cross-section
of the supply line is sufficient.
6.5.1 Cable recommendation
NOTICE
Damage to the device.
Current flow through the shielding of signal lines can cause the device to
become damaged.
► For signal lines between the motor-drive unit and transformer, connect
the shielding of the signal line to the motor-drive unit only.
► For all other signal lines, connect the shielding on both sides as long as
there is no potential difference between the two devices. If there is a po-
tential difference, then connect the shielding on one side only even when
using these signal lines.
Please note the following Maschinenfabrik Reinhausen GmbH recommenda-
tion when wiring.
▪ Electromagnetic interference on signal lines, which can be expected due
to the transformer's surroundings, can disrupt the proper operation of the
motor-drive unit.
▪ Where possible, route signal lines with shielding.
▪ Ensure that the copper cables used have a temperature resistance of
70°C.
Circuit Function Type Material
Motor circuit Power supply Unshielded, separate cable Copper
Control circuit Power supply Unshielded, separate cable Copper
Tap-change supervisory con-
trol
Shielded Copper
Pulse circuit, raise/lower Shielded Copper
Tripping circuit Q1-Off Shielded Copper
Monitoring circuit Temperature sensor Shielded Copper
Signaling circuits Signal transmission Shielded Copper
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