Automation Direct DURApulse GS4 User Manual page 492

Appendix D: Using GS4 AC Drives with AutomationDirect PLCs
a D O
PPenDix verview
The material presented here will help you connect your GS4 drive to an ADC PLC. The concepts
and techniques used can also be applied to any 3rd party PLC.
There are two ways a PLC can control the drive; via communications or via physical inputs. The
GS4 supports either of the following communications: serial Modbus or serial BACnet (only one is
available at a time via the built-in RS-485 port). Ethernet communication is available by installing
a ModTCP option card or an EtherNet/IP option card (Only one can be installed at a time).
GS4 supports a variety of I/O on the main control board.
• 10 Sinking/sourcing DC inputs
• 2 Sinking/sourcing DC outputs
• 2 Form C relay outputs
• 3 Analog inputs (0~10V, -10~10V, 0~20 mA, 4~20 mA)
• 2 Analog outputs (0~10V, -10~10V, 4~20 mA)
• 1 Hi-speed pulse output (30V/30mA/100kHz max)
I/O can be extended by installing optional I/O cards (only one can be installed):
• 6-pt 120VAC input card (100~130 VAC)
• 4-pt DC input / 2-pt DC output card (min 19VDC – max 30VDC input, max 48VDC output; inputs
and outputs are sink/source; jumper selectable)
• 6-pt Relay output card, SPST (max 250VAC/30VDC; max 5A resistive/2A inductive)
s /s
inking ourCing
GS4 DC inputs and outputs can be sinking or sourcing, depending on how they are wired. If you
understand the basics of how sinking and sourcing work, the two options can be easily applied.
• For a detailed technical explanation of sink and source, please follow this link:
wwwautomationdirectcom/static/specs/sinksourcepdf
The term "sinking" means that the device "sinks" current into itself. It does not supply current.
Sinking inputs are ON when you apply voltage (and thus, current) to them. A "sinking" device
needs to have a "sourcing" device attached to it to supply current.
So, if the GS4 inputs are wired for sinking, they require the external device (FWD/STOP switch in
this example) to supply current (when closed, the external device will "source" current). Notice
the current flow represented by the red arrows. The GS4 input "sinks" the current flow.
Page D–2
b
asiCs
Field devices
are sourcing
FWD/STOP
REV/STOP
Multi-step 1
Multi-step 2
Multi-step 3
Multi-step 4
N/A
N/A
N/A
N/A
DuRA
pulse
GS4-xxxx
Drive inputs
are sinking
Internal Power
Supply
+24V
+
DCM
DIC Digital Input Common
FWD
REV
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
Drive
Internals
GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017