Allen-Bradley PowerFlex DC Drive - Frame B Bimetal Thermostat Installation Instructions
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Installation Instructions
PowerFlex® DC Drive - Frame B Bimetal
Thermostat
What This Kit Includes • Bimetal thermostat
• Wire leads with connector
• Thermal grease
• Static strap
Tools That You Need • Phillips ® screwdriver
• Flathead screwdriver
• Nut driver or wrench
• Torque wrench
Phillips ® is a registered trademark of Phillips Screw Company.
ATTENTION: Only qualified personnel familiar with DC
drives and associated machinery should plan or implement the
installation, start-up and subsequent maintenance of the system.
Failure to comply may result in personal injury and/or equipment
damage.
ATTENTION: To avoid an electric shock hazard, ensure that
all power to the drive has been removed before performing the
following.
ATTENTION: This drive contains ESD (Electrostatic
Discharge) sensitive parts and assemblies. Static control
precautions are required when installing, testing, servicing or
repairing this assembly. Component damage may result if ESD
control procedures are not followed. If you are not familiar with
static control procedures, reference A-B publication 8000-4.5.2,
“Guarding Against Electrostatic Damage” or any other
applicable ESD protection handbook.
PowerFlex® DC Drive - Frame B Bimetal
Thermostat
What This Kit Includes • Bimetal thermostat
• Wire leads with connector
• Thermal grease
• Static strap
Tools That You Need • Phillips ® screwdriver
• Flathead screwdriver
• Nut driver or wrench
• Torque wrench
Phillips ® is a registered trademark of Phillips Screw Company.
ATTENTION: Only qualified personnel familiar with DC
drives and associated machinery should plan or implement the
installation, start-up and subsequent maintenance of the system.
Failure to comply may result in personal injury and/or equipment
damage.
ATTENTION: To avoid an electric shock hazard, ensure that
all power to the drive has been removed before performing the
following.
ATTENTION: This drive contains ESD (Electrostatic
Discharge) sensitive parts and assemblies. Static control
precautions are required when installing, testing, servicing or
repairing this assembly. Component damage may result if ESD
control procedures are not followed. If you are not familiar with
static control procedures, reference A-B publication 8000-4.5.2,
“Guarding Against Electrostatic Damage” or any other
applicable ESD protection handbook.
2 PowerFlex® DC Drive - Frame B Bimetal Thermostat
What You Need to Do The Bimetal Thermostat is located on the drive heatsink. To install the
Bimetal Thermostat:
❐ Step 1: Remove power from the drive
❐ Step 2: Remove the protective covers and power wiring
❐ Step 3: Remove the Pulse Transformer and Switching Power Supply
boards
❐ Step 4: Remove the existing Bimetal Thermostat
❐ Step 5: Install the new Bimetal Thermostat
❐ Step 6: Install the Pulse Transformer board and Switching Power
Supply board
❐ Step 7: Replace the protective covers and document the change
Step 1: Remove Power
from the Drive
1. Remove and lock-out all incoming power to the drive.
ATTENTION: Remove power before making or breaking cable
connections. When you remove or insert a cable connector with
power applied, an electrical arc may occur. An electrical arc can
cause personal injury or property damage by:
• sending an erroneous signal to your system’s field devices,
causing unintended machine motion
• causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create
electrical resistance.
L1 L2 L3
O
I
What You Need to Do The Bimetal Thermostat is located on the drive heatsink. To install the
Bimetal Thermostat:
❐ Step 1: Remove power from the drive
❐ Step 2: Remove the protective covers and power wiring
❐ Step 3: Remove the Pulse Transformer and Switching Power Supply
boards
❐ Step 4: Remove the existing Bimetal Thermostat
❐ Step 5: Install the new Bimetal Thermostat
❐ Step 6: Install the Pulse Transformer board and Switching Power
Supply board
❐ Step 7: Replace the protective covers and document the change
Step 1: Remove Power
from the Drive
1. Remove and lock-out all incoming power to the drive.
ATTENTION: Remove power before making or breaking cable
connections. When you remove or insert a cable connector with
power applied, an electrical arc may occur. An electrical arc can
cause personal injury or property damage by:
• sending an erroneous signal to your system’s field devices,
causing unintended machine motion
• causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create
electrical resistance.
L1 L2 L3
O
I
PowerFlex® DC Drive - Frame B Bimetal Thermostat 3
Step 2: Remove the
Protective Covers and
Power Wiring
1. Remove the screws and washers that secure the plastic shields to the
bottom of the drive and remove the shields.
2. Remove the bolts, washers and wiring from the U phase AC input and D
power terminals.
3. Disconnect the DPI cable from the HIM assembly (if present).
4. Loosen, but do not remove, the screws that secure the bottom cover to
the drive, then slide the cover down and off the drive chassis.
Remove screws and shield Remove screws and shield
U Phase D Terminal
Remove bolts and wiring
Bottom View
=
Disconnect
DPI cable
Tightening torque:
1.5 N•m (13.3 lb•in)
Step 2: Remove the
Protective Covers and
Power Wiring
1. Remove the screws and washers that secure the plastic shields to the
bottom of the drive and remove the shields.
2. Remove the bolts, washers and wiring from the U phase AC input and D
power terminals.
3. Disconnect the DPI cable from the HIM assembly (if present).
4. Loosen, but do not remove, the screws that secure the bottom cover to
the drive, then slide the cover down and off the drive chassis.
Remove screws and shield Remove screws and shield
U Phase D Terminal
Remove bolts and wiring
Bottom View
=
Disconnect
DPI cable
Tightening torque:
1.5 N•m (13.3 lb•in)
4 PowerFlex® DC Drive - Frame B Bimetal Thermostat
5. Loosen, but do not remove, the screws that secure the top cover to the
drive, then slide the cover up and off the drive chassis.
Important: The HIM assembly is connected via a cable to the Control
board and therefore will not pull free from the drive until
disconnected. See step 4 below for instructions.
6. Disconnect the HIM Communication cable from the connector on the
upper right corner of the Control board and set the cover aside.
U VC D W
Tightening torque:
1.5 N•m (13.3 lb•in)
Pull tabs out
to disconnect
cable.
5. Loosen, but do not remove, the screws that secure the top cover to the
drive, then slide the cover up and off the drive chassis.
Important: The HIM assembly is connected via a cable to the Control
board and therefore will not pull free from the drive until
disconnected. See step 4 below for instructions.
6. Disconnect the HIM Communication cable from the connector on the
upper right corner of the Control board and set the cover aside.
U VC D W
Tightening torque:
1.5 N•m (13.3 lb•in)
Pull tabs out
to disconnect
cable.
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