SUN2000-(33KTL, 40KTL)-JP
User Manual
9 Maintenance
Issue 07 (2019-06-30)
Copyright © Huawei Technologies Co., Ltd.
107
Table 9-3
Port description (2-pin spot-check terminal)
No.
Port
Description
Function
1
A
AC spot-check port
Measure the
protection time of
the AC relay.
2
B
AC spot-check port
Figure 9-2
Connecting cables to a 12-pin spot-check terminal
The figure shows only one route of the cable connections.
Table 9-4
Port description (12-pin spot-check terminal)
No.
Port
Description
Function
1
A
AC spot-check port
Measure the protection
time of the AC relay.
2
B
AC spot-check port
3
PV1/2+
Spot-check port for PV
input string 1+ and 2+
(MPPT 1)
Measure the impedance
between the PV input
string and the ground.
4
PV3/4+
Spot-check port for PV
input string 3+ and 4+
(MPPT 2)
5
PV5/6+
Spot-check port for PV
input string 5+ and 6+
(MPPT 3)
