YASKAWA Z1000U Series Quick Start Manual page 36

i.4 Electrical Installation
Characteristics
Three-phase variable transformer without solidly grounded neutral
n Symmetrical Grounded Network
When EMC is a concern for drives with internal EMC filters and the network is grounded symmetrically, install the EMC
filter screw to the ON position and enable the internal EMC filter.
Drives ship from the factory with EMC filter screws installed in the OFF position.
n EMC Filter Switch Location
A – SW (ON)
36
L3
Figure i.23 Symmetrical Grounded Network
A ON
B
OFF
SW
Figure i.24 EMC Filter Switch Location
(Drive Models 2E0028, 2W0028, 4E0011 to 4E0034, and 4W0011 to 4W0034)
L1
L2
E(G) IG R+ R- S+ S-
V+ AC A1 A2 A3 FM AM AC RP AC 24V
S1 S2 S3 S4 S5 S6 S7 S8 SN SC SP
B – Screw (OFF)
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide
Diagram
L1
L1
L2
L2
L3
L3
M1 M2 M3 M4
MD ME MF
MA MB MC