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Installation And Connections; Installation Notes; Input Power; Control Signal Isolation - Toshiba Q9 Plus Installation & Operation Manual

Bypass asd/bypass box
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Installation and Connections

The Q9 Plus Bypass ASD/Q9 Plus Bypass Box is categorized into three system configurations that are
identified by the part number suffixes A, C, and E. See
Figure 10 on pg. 34
The Q9 Plus Bypass ASD/Q9 Plus Bypass Box may be ordered with or without the optional system
protection hardware and the bypass circuitry designed to facilitate system diagnostics and maintenance
operations. The available Q9 Plus Bypass ASD/Q9 Plus Bypass Box HP ranges for the 230- and 460-
volt units are listed in the section titled

Installation Notes

Input Power

The Q9 Plus Bypass ASD/Q9 Plus Bypass Box input voltage should remain within 10% of the
specified input voltage range. Input voltages approaching the upper or lower limit settings may require
that the overvoltage and undervoltage stall protection level parameters be adjusted. Voltages outside of
the permissible tolerance should be avoided.
The input power frequency should be ±2 Hz of the specified input frequency.
DO NOT use an ASD with a motor that has a higher power rating than the rated output of the ASD.

Control Signal Isolation

Interface problems may occur when some ASDs are used in conjunction with process controllers.
Signal isolation may be required to prevent controller and/or ASD malfunctions. The Q9 Plus Bypass
ASD/Q9 Plus Bypass Box option, the ASD-ISO-1, provides isolation of the Control Board output
circuit from the AM/FM output and from the I input (for further information on the ASD-ISO-1 option
contact the TIC Customer Support Center or contact the manufacturer of the process controller for
additional information on controller compatibility and signal isolation). See the section titled
Monitoring and Control on pg. 26

Jumper Requirements

The Q9 Plus Bypass ASD/Q9 Plus Bypass Box is shipped with jumpers connected to the following
ST to CC (coasts to stop if removed),
S4 to CC (Emergency Off trip if removed),
CIA to CIB (Customer Interlock; user-specific), and
DRA to DRB (system disabled if open).
All four jumper connections are required for normal operation of the Q9 Plus Bypass ASD/Q9 Plus
Bypass Box while in the default settings configuration (see the Q9 Plus ASD Installation &
Operation Manual [D/N 68249] for information on changing the default settings).

Output Terminals

DO NOT apply commercial power to the output terminals T1, T2, or T3.
Isolate (disconnect) the Q9 Plus ASD from the motor before megging the motor.
When a brake-equipped motor is connected to the Q9 Plus Bypass ASD/Q9 Plus Bypass Box, it is
possible that the brake may not release at startup because of insufficient voltage. To avoid this
condition, DO NOT connect the brake or the brake contactor to the output of the Q9 Plus Bypass ASD/
Q9 Plus Bypass Box.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: - Email:
for electrical depictions of the A, C, and E variations, respectively.
Current/Voltage Specifications on pg.
for more information on control input signals.
Q9 Plus Bypass ASD/Bypass Box Installation and Operation Manual
Figure 8 on pg.
Figure 9 on pg.
33, and



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