Isolation Test - Eaton Rapid Link 5 Manual

3.7 Isolation test

The RAMO5 and RASP5 Rapid Link 5 modules are delivered pre-tested and
require no additional testing.
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).
If insulation testing is required in the power circuit of the PDS, you must
consider the following measures.
Rapid Link 5 modules
Disconnect all plug-in connections in the control and power sections.
DANGER

For RASP, wait at least five minutes after switching off the
supply voltage before disconnecting a cable connection.
Testing the motor cable insulation
Always disconnect the motor feeder plug before disconnecting the RAMO5
and RASP5 Rapid Link 5 modules. Measure the insulation resistance of the
motor cable between the individual phase conductors and between the
phase conductor 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 RAMO5 and RASP5 Rapid Link 5
modules. 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 measurement vol-
tage must at least match the rated operating voltage of the motor but is not
to exceed 1000 V.
The insulation resistance must be greater than 1 M Ω .
￫
Observe the motor manufacturer's notes on testing the insula-
tion resistance.
Rapid Link 5 · RAMO5 · RASP5 05/20 MN034004EN www.eaton.com
3 Installation
3.7 Isolation test
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