Baldor SERIES 5, Installation And Operation Manual

Page: 17 / 32

17
TABLE 10 - DRIVE OPERATING CONDITION AND RUN/FAULT RELAY CONTACT STATUS
Run Relay Operation
(J5 Installed in “RUN” Position)
(Factory Setting)
Fault Relay Operation
(J5 Installed in “FLT”
Position)
Drive
Operating
Condition Description
Normally Open
Contact
Normally Closed
Contact
Normally
Open Contact
Normally
Closed
Contact
Power Off
Main Power
Disconnected
Open Closed Open Closed
Run Mode
1
Normal Drive
Operation
Closed Open Closed Open
Stop Mode
2
Selected by
Operator
Open Closed Closed Open
Fault
3
Drive Tripped Open Closed Open Closed
Notes: 1. Run Mode is selected with the optional Forward-Stop-Reverse Switch or with the
jumper installed in CON2 (jumper installed in the “F-S” position for forward direction (factory
setting) or jumper installed in the “R-S” position for reverse direction). 2. Stop Mode is selected
using the optional Forward-Stop-Reverse Switch.3. I
2
t, Short Circuit, Undervoltage, Overvoltage.
5 IMPORTANT APPLICATION INFORMATION
WARNING! Do not use this drive in an explosion-proof application.
5.1 MOTOR WITH EXTERNAL FAN COOLING: Most totally enclosed fan-cooled (TEFC) and
open ventilated 3-phase AC induction motors will overheat if used beyond a limited speed
range at full torque. Therefore, it is necessary to reduce motor load as speed is decreased.
CAUTION! 1. Some motors have low speed characteristics, which cause overheating and
winding failure under light load or no load conditions. If the motor is operated in this
manner for an extended period of time, it is recommended that the unloaded motor
current be checked from 2 - 15 hz (60 - 450 rpm) to ensure motor current does not exceed
the nameplate rating. Do not use motor if the motor current exceeds the nameplate rating.
2. It Is Recommended that the Drive be used with Inverter Duty or TENV Motors.
Note: Some fan-cooled motors can be used over a wider speed range. Consult your Baldor
District Office for details.
Inverter duty and most totally enclosed non-ventilated (TENV) motors can provide full rated
torque over an extended speed range without overheating. See Figure 7 on page 18.