Installation Instructions
VFD0160R1
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| OPTIONAL SUPPLEMENTARY |
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| POWER FUSES - MAIN SHORT |
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| CIRCUIT PROTECTION BY OTHERS |
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| DISC1 | (SEE NOTE 1) |
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| FU1 |
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| M1 |
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| L1 | 1L1 |
| 2L1 |
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POWER | (T1) | (L1) |
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| (5) | (6) |
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L2 | 1L2 |
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| 2L2 |
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SUPPLY |
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| (3) | (4) |
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3 PHASE | (T2) | (L2) |
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60 Hz | L3 | 1L3 |
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| 2L3 |
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| (T3) | (L3) | OPTIONAL |
| OPTIONAL |
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| OPTIONAL | (1) | (2) |
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GND |
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| DRIVE INPUT | INPUT LINE |
| VFD |
| OUTPUT LOAD |
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| GND | GND | CONTACTOR | REACTOR |
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| REACTOR |
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| M3 3L1 |
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| M2 | OL1 1T1 |
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| LUG |
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| R | L1 | U | U1 | U |
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| (2) | (1) |
| A1 | A2 |
| A1 | A2 | (1) | (2) | (T1) |
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| AC MOTOR | |||||||||
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| 3L2 |
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| S |
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| V1 | V |
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| 1T2 |
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| L2 | V |
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| M | (CUSTOMER | |||||
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| (4) | (3) |
| B1 | B2 |
| B1 | B2 | (3) | (4) | (T2) | ||||
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| SUPPLIED) | |||||||||
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| 3L3 |
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| T | L3 | W | W1 | W |
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| 1T3 |
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| (6) | (5) |
| C1 | C2 |
| C1 | C2 | (5) | (6) | (T3) |
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| GND |
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| 1L1 | 1L2 |
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| GND |
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LUG
TO
CONTROL
TRANSFORMER
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: P0702[0] and P0702[1] = 3,
P0748 = Digital Out 1 Reverse (
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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 8 for proper fuse and wire sizes.
8.See Siemens Publication No.
Figure 9. E-Bypass Power Circuit.
Siemens Building Technologies, Inc. | 13 |