Eaton Rapid Link RAMO5, Manual

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3 Installation
3.7 Isolation test
106
Rapid Link 5 · RAMO5 · RASP5 10/19 MN034004EN www.eaton.com
3.7 Isolation test
The Rapid Link modules RAMO5 and RASP5 are tested, delivered and
require no additional testing.
If insulation testing is required in the power circuit of the PDS, you must con-
sider the following measures.
Rapid Link modules
Disconnect all plug-in connections in the control and power sections.
Testing the motor cable insulation
Always disconnect the motor feeder plug before disconnecting RAMO5 and
RASP5 Rapid Link modules. Measure the insulation resistance of the motor
cable between the individual phase conductors and between the phase con-
ductor and the protective conductor.
The insulation resistance must be greater than 1 M Ω .
Testing the mains cable insulation
Always disconnect the power plug from Rapid Link modules RAMO5 and
RASP5. Measure the insulation resistance of the mains cable between the
individual phase conductors and between each phase conductor and the
protective conductor.
The insulation resistance must be greater than 1 M
Ω
.
Testing the motor insulation
The motor cable must be disconnected at all terminals (U, V, W, B1, B2, T1,
T2, PE) and the bridge circuits (star or delta) open. Measure the insulation
resistance between the individual motor windings. The measured voltage
must at least match the rated operating voltage of the motor but must not
exceed 1,000 V.
The insulation resistance must be greater than 1 M Ω .

DANGER
Do not perform insulation resistance tests with an insulation
tester at the control terminals (SI1, SI2, SI3, SI4, AS-Interface,
etc.) and power terminals (power plug and motor feeder plug).

DANGER
With RASP5, wait at least 5 minutes after switching off the
supply voltage before disconnecting a cable connection.
￫
Consider the notes from the motor manufacturer in testing the
insulation resistance.