Master Configuration; Ground Fault Protection - AuCom PROFINET CARD Instructions Manual

4. Master configuration

Import the latest GSDML file into your Master configuration tool. This file is available
from your supplier.
If your Master uses on-screen icons, two graphic bitmap files are available from the
website. SSPM_N.bmp indicates normal mode. SSPM_D.bmp indicates diagnostic
mode.

5. Ground fault protection

NOTE
Ground fault protection is only available on ground fault enabled cards,
with soft starters running a compatible version of software. Contact your
supplier for assistance.
5.1 Overview
Ground fault protection
The Profinet Card can detect ground current and trip before the equipment is
damaged.
Ground fault protection requires a 1000:1 or 2000:1 5 VA current transformer (not
supplied). The soft starter can be configured to trip at 1 A~50 A. If ground fault current
rises above 50 A, the soft starter will trip immediately.
5.2 Connect the CT to the ground fault inputs
To use ground fault protection, a common mode current transformer (CT) must be
installed around all three phases. Use a 1000:1 or 2000:1 CT with rating of 5 VA and set
Ground Fault CT Ratio
parameter 40E
terminals (G1, G2, G3).
For maximum protection, the CT should be installed on the input side of the soft
starter.
5.3 Configure ground fault protection settings
Ground fault protection settings must be set in the soft starter.
Parameter Parameter name
Ground fault trip
40A
level
Ground fault trip
40B
delay
Ground fault trip
40C
active
Profinet Card (710-16502-00C)
to match. Connect the CT to the ground fault
Description
Sets the trip point for ground fault current
protection.
Slows the soft starter's response to ground fault,
avoiding trips due to momentary fluctuations.
Selects when a ground fault trip can occur.
INSTRUCTIONS
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