Step 1—Variable Speed Drives Series III Overview
Variable Speed Drives Series III
LIT-12012996—April 2018
www.johnsoncontrols.com
1
Step 1—Variable Speed Drives Series III Overview
This chapter describes the purpose and contents of this
manual, the receiving inspection recommendations and
the variable frequency drive catalog numbering system.
How to Use this Manual
The purpose of this manual is to provide you with information
necessary to install, set and customize parameters, start up,
troubleshoot and maintain the variable frequency drive (VFD).
To provide for safe installation and operation of the
equipment, read the safety guidelines at the beginning of this
manual and follow the procedures outlined in the following
chapters before connecting power to the VFD. Keep this
operating manual handy and distribute to all users,
technicians and maintenance personnel for reference.
Receiving and Inspection
The Variable Speed Drives Series III has met a stringent
series of factory quality requirements before shipment. It is
possible that packaging or equipment damage may have
occurred during shipment. After receiving your VFD, please
check for the following:
Check to make sure that the package includes the Instruction
Leaflet, Quick Start Guide, and accessory packet. The
accessory packet includes:
●
Rubber grommets
●
Control cable grounding clamps
●
Additional grounding screw
Inspect the unit to ensure it was not damaged during
shipment.
Make sure that the part number indicated on the nameplate
corresponds with the catalog number on your order.
If shipping damage has occurred, please contact and file a
claim with the carrier involved immediately.
If the delivery does not correspond to your order, please
contact your sales representative.
Note:
Do not destroy the packing. The template printed on
the protective cardboard can be used for marking the
mounting points of the VFD on the wall or in a cabinet.
Real Time Clock Battery Activation
To activate the real time clock (RTC) functionality in the
VFD, the RTC battery (already mounted in the drive) must
be connected to the control board.
Simply remove the primary drive cover, locate the RTC
battery directly below the keypad, and connect the white
2-wire connector to the receptacle on the control board.
Figure 1. RTC Battery Connection
Table 1. Common Abbreviations
Abbreviation
Definition
CT
Constant torque with high overload rating (150%)
VT
Variable torque with low overload rating (110%)
IH
High Overload (150%)
IL
Low Overload (110%)
VFD
Variable Frequency Drive
