Siemens SED2 VFD NEMA Operating Instructions Manual page 21

OPTIONAL
INPUT LINE
REACTOR
(SUPPLIED
LOOSE)
POWER A1
SUPPLY
3 PHASE
B1
60 Hz
C1
GND
NOTES:
1. Branch circuit protection to be provided by installer, per UL508A, if not provided with
drive.
2. For bypass operation modify these drive parameters: P0704 (0) and P0704 (1) = 3.
3. Control and communication wiring should be 300V UL minimum.
4. Communication wiring should be run with maximum separation possible from all other
wiring.
5. Essential service mode operates the motor full speed (bypass) with no protection for the
motor or system.
6. Ensure that automatic bypass will not damage the system before activating.
7. See Table 10 for proper fuse and wire sizes.
8. See Siemens Publication No. 125-3201 for SED2 VFD input/output signal wiring details.
Siemens Building Technologies, Inc.
OPTIONAL SUPPLEMENTARY
POWER FUSES - MAIN SHORT
CIRCUIT PROTECTION BY OTHERS
(SEE NOTE 1)
DISC1
FU1
L1 1L1
(T1) (L1)
A2
L2 1L2
(T2) (L2)
B2
L3 1L3
(T3) (L3) OPTIONAL
C2
DRIVE INPUT
CONTACTOR
GND
GND
LUG
1L1 1L2
TO
STEP-DOWN
CONTROL
TRANSFORMER
1
Figure 8. NEMA Type 3R/3RHE Bypass Power Circuit.
2L1
2L2
2L3
OPTIONAL
INPUT LINE
REACTOR
VFD1
M3
3L1
R
U
(1) (2)
A1 A2
3L2
S V
(3) (4)
B1 B2
3L3
T W
(5) (6)
C1 C2
GND
VFD1 CONTROL TERMINALS
2 3 4 5 6 7 8 9
M2
RR M2
(6) (10)
Installation
ONLY
M1 SUPPLIED
ON UNITS
(5) (6)
WITH
BYPASS
(3) (4)
OPTIONAL
OUTPUT LOAD
(1) (2)
REACTOR
(SUPPLIED
LOOSE)
M2 OL1 1T1
U
(1) (2)
(T1)
A1 A2
V 1T2
(3) (4)
(T2)
B1 B2
W 1T3
(5) (6)
(T3)
C1 C2
GND
LUG
10 11
AC MOTOR
(CUSTOMER
M
SUPPLIED)
13