SMA SC 500CP XT Service Manual - Manual (Page 11)

SMA Solar Technology AG 3 Power-Generating Unit Protection Test
Instructions for the Protection Test of the Power-Generating Unit SCCPXT_EZE-SG-en-11 11
3.3 Test Parameters
3.3.1 Overview of Test Parameters
The inverters have two relevant parameter pairs each for voltage increase protection and voltage drop protection and
one relevant pair of parameters for frequency increase protection and frequency drop protection.
3.3.2 Saving the Test Parameters
Procedure:
1. Log into the user interface.
2. Select PV system > Devices.
3. Select
.
☑ A list of the available device types appears.
4. Select the desired device type.
☑ A list appears containing all available devices of this type.
5. Select the desired device from the list.
6. Select the tab Parameters.
7. Save the test parameter values.
Voltage increase protection
1st level: V> / t
V>
2nd level: V>> / t
V>>
Setting value / operating time VCtlhLim / VCtlhLimTm VCtlhhLim / VCtlhhLimTm
Voltage drop protection
1st level: V< / t
V<
V<< / t
V<<
Setting value / operating time VCtllLim / VCtllLimTm VCtlllLim / VCtlllLimTm
Frequency increase protection
1st level: f> / t
V>
Setting value / operating time HzCtlhLim / HzCtlhLimTm
Frequency drop protection
1st level: f< / t
V<
Setting value / operating time HzCtllLim / HzCtllLimTm
Access to parameters
The parameters needed for the power-generating unit protection test are only accessible after the installer password
has been entered. The installer password is changed during the initial installation. You can get the changed installer
password from the PV system operator. The default password can be found in the operating manual.