User Guide

VSD Series II Variable Speed Open Drives Product Bulletin
2
Additional VSD Series II Open Drive
Features
Integrated DC link choke standard on drives from
frame 4 through frame 9
Anti-trip DC bus regulation
Input surge protection against voltage spikes
varistor input
Additional I/O and communication cards provide
plug-and-play functionality
Remote mount keypad kit available
NEMA Type 1 and NEMA Type 12 available
Real-time clock with PLC functionality
Two independent PID functions
On-screen troubleshooting diagnostics with
embedded manual assistance
Onboard RS-485 (BACnet, N2, Modbus)
Onboard Ethernet-based communications
(BACnet/IP, Modbus/TCP)
Standard NEMA Type 12 keypad on all drives
Quickstart wizard built into programming of drive
ensures a smooth startup
I/O connections with simple quick connection
terminals
Control logic can be powered from an external 24V
power supply to simulate internal drive functions
and fieldbus, if necessary, used for testing and
software downloads
Standard I/O,6DI, 2AI, 1AO 2 Form C RO (NO/NC),
1 Form A RO (NO)
Hard-wired external/damper interlock
Onboard Network Communication
Metasys® System
Each VSD Series II Variable Speed Open Drive
provides communication between the drive and a
Johnson Controls Metasys N2 network. With this
connection, the drives can be controlled, monitored
and programmed from the Metasys system. N2 can be
selected and programmed by the drive keypad.
BACnet
The VSD Series II Variable Speed Open Drives provide
communication to BACnet® networks. Data transfer is
master-slave/token passing (MS/TP)
RS-485.
BACnet IP
100 base T interface
Modbus TCP
Ethernet-based protocol
Modbus RTU
Each VSD Series II Variable Speed Open Drives
provide communication to Modbus RTU RS-485 as a
slave on a Modbus network. Other communication
parameters include an address range from 1 – 247; a
parity of None, Odd or Even; and the stop bit is 1.
IMPORTANT: Use this VSD Series II Variable
Speed Open Drive only as an operating control.
Where failure or malfunction of the series II open
drive could lead to personal injury or property
damage to the controlled equipment or other
property, additional precautions must be designed
into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems
or safety or limit controls, intended to warn of or
protect against failure or malfunction of the series II
open drive.