Start-Up Procedure; Start-Up Procedure; Bypass Start-Up Preparation - YASKAWA P1000 Technical Manual

4.5

Start-Up Procedure

Follow the steps and procedures outlined below to help ensure proper start-up of the P1000 Bypass.
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Bypass Start-Up Preparation

1.
Remove power to the P1000 Bypass and verify using a multimeter. Follow all appropriate lockout/tagout procedures.
WARNING! Electrical Shock Hazard. Do not remove covers or touch circuit boards while the power is on. Failure to comply could
result in death or serious injury.
2.
Record the motor nameplate information and verify that the input voltage matches the P1000 Bypass rating. Verify
that the motor rated FLA does not exceed the rated output rating of the bypass unit, and verify that the motor FLA
falls in the rated range of the thermal overload relay (if present).
3.
The P1000 Bypass provides an input circuit breaker. The adjustable trip level must be set using the two dials located
on the circuit breaker. The dial marked "FLA" sets the breaker to match the motor FLA. Use a small straight-edge
screwdriver and adjust to the appropriate current level. The other dial sets the inrush level. Make sure this dial is set
to "Auto 1" (factory setting).
4.
Verify that three-phase line power is connected to input circuit breaker.
5.
Verify that the grounding terminal of the P1000 Bypass is attached to the appropriate building ground circuit.
6.
Verify that wiring connections are properly terminated and connected to appropriate circuits at PCB A2 using the
P1000 connection diagram.
Please note the following in regards to the safety circuit (DI-2, terminal TB2-2) and the BAS interlock circuit (DI-3,
terminal TB3-3):
Safety Interlock Circuit
DI-2 (terminal TB2-2) is provided to connect safety devices in a normally-closed series circuit, such as: freeze up
thermostats, smoke/fire sensors, high pressure limits, temperature limits, or vibration detectors.
The HOA keypad will display a Safety Open fault if a N.C. safety circuit is not closed between DI-2 (TB2-2) and IG24
(TB2-10) on PCB A2 at power-up with a Run command in HAND or AUTO mode. An open circuit between DI-2 (TB2-2)
and IG24 (TB2-10) will prevent bypass operation.
Take one of the following steps to ensure proper operation prior to startup:
Install a N.C. safety circuit between DI-2 (TB2-2) and IG24 (TB2-10) on PCB A2.
Install a jumper between DI-2 (TB2-2) and IG24 (TB2-10) on PCB A2.
Building Automation System Interlock Circuit (Drive and Bypass Enable Input)
The HOA keypad will display "INTRLOCK OPN" to indicate a BAS Interlock fault is a N.C. safety circuit is not closed
between DI-3 (TB2-3) and IG24 (TB2-10) on PCB A2 at power-up with a Run command in HAND or AUTO mode. An
open circuit between DI-3 (TB2-3) and IG24 (TB2-10) will prevent bypass operation.
This condition is a fault and will prevent drive and bypass operation.
Take one of the following steps to ensure proper operation prior to startup:
Install a N.C. BAS Interlock Circuit/Damper Interlock between DI-3 (TB2-3) and IG24 (TB2-10) on PCB A2.
Install a jumper between DI-3 (TB2-3) and IG24 (TB2-10) on PCB A2.
7.
Verify that the motor is wired for the application voltage if it is a dual voltage motor.
8.
Connect the motor to the output terminals of the motor overload.
9.
Set the motor overload for the proper FLA of the motor.
10.
Verify that the motor ground is connected to the P1000 Bypass drive ground terminal.
11.
Record all other connections to the P1000 Bypass by terminal number to determine if special programming of any of
the following is required:
Multi-function Digital Inputs – Bypass control board TB2 (A2)
Multi-function Digital Outputs – Bypass control board TB1 (A2)
Analog Inputs – Drive control board (A1)
Analog Outputs – Drive control board (A1)
Differential PI control – Bypass control board (A2)
Serial Communications – Bypass control board TB3 (A2)
YASKAWA SIEP YAIP1B 01B YASKAWA AC Drive – P1000 Bypass Technical Manual
Refer to Standard Connection Diagram on page 42

4.5 Start-Up Procedure

for details.
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