Yaskawa P7 Metasys N2 - Manual (Page 37)

P7 Bypass Applications 6-3
Bypass/Engineered Drive Parameter Settings
For many applications, the drive is integrated into a bypass or engineered package. This type of package typically features an enclosure
with contactors that allow the user to run the motor from line power (bypass mode) or from the drive (drive mode). This package also
provides the flexibility for interfacing normally closed safety interlocks (fire status, freeze status, vibration sensors, etc.) which stop the
drive if the contacts open.
Typical Parameter Settings
A bypass/engineered drive is supplied with a list of parameters and their default values. Use the table below to record any parameter
modifications for this particular application.
Table 7.1 - Typical Bypass/Engineered Drive Parameters
Bypass Settings Parameter
Number
Default User
Description
E1-01 Input Voltage (VAC) – (default dependent on drive model)
E1-05 Maximum Output voltage (VAC) – (default dependent on drive mode)l
E2-01 Motor Rated Current (FLA) (A) – (default dependent on drive model)
T1-02 Motor Rated Power (kW) – (default dependent on motor)
T1-04 Motor Rated Current (FLA) (A) – (default dependent on motor)
A1-01 2 Parameter Access Level (2 – Advanced)
b1-01 Frequency Reference Source (dependent on bypass options specified)
b1-02 Command Source (dependent on bypass options specified)
b1-03 0 Stopping Method (0 – Ramp to Stop) (ramp slope set by C1-02)
b1-04 1 Reverse Operation (1 – Disabled)
b1-07 1 Local/Remote RUN Selection (1 – Accept External RUN)
b1-08 1 RUN Command During Programming (1 – Enabled)
b1-12 HAND Mode Frequency Reference Selection (Operator Keypad)
b2-02 50% DC Injection Braking Current (50%)
b2-03 5.0 sec DC Injection Braking Current @ Start (5.0sec)
b2-09 0.0 A Motor Preheat Current
b3-01 1 Speed Search Select (1 – Enabled (Speed Estimated))
b8-01 1 Energy Conservation Control Select (1 – Enabled)
C1-01 60.0 sec Acceleration Time
C1-02 60.0 sec Deceleration Time
d1-01 10.0 hz Frequency Reference 1 (HAND Mode) (see H1-03)
d1-02 20.0 hz Frequency Reference 2 (HAND Mode) (see H1-03)
E1-01 Input Voltage– (default dependent on drive model)
E1-03 7 V/F Pattern Select
E1-05 Output Voltage– Parameter defaults dependent on drive model
F6-01 3 Operation After Communication Loss (3 – Alarm Only)
H1-01 70 hex Terminal S3 Function (Bypass Drv Enbl)
H1-02 6 hex Terminal S4 Function (Local /Remote Select)
H1-03 6C hex Terminal S5 Function (Frequency Reference 2 (N.O.))
H1-04 20 hex Terminal S6 Function (External Fault (N.O.))