13-25-608 Page 24
SECTION 4
CONTROLS & INSTRUMENTATION
GENERAL DESCRIPTION
The Gardner Denver rotary screw compressor is pre-wired with all controls, motor and starter to match
specific voltage and horsepower as ordered. It is necessary only to connect the compressor unit to the
correct power supply and to the shop air line. A standard package unit consists of the modular
compressor assembly, air/oil cooling and filtration system, control components, electric motor drive,
associated starting module, sound attenuation metal enclosure and common support steel base.
ELECTRONIC CONTROLLER AND STARTER ASSEMBLY HARDWARE - See to the Wiring
Diagrams listed [by voltage] at the end of this section, for more details on the location of the
referred hardware.
AirSmart
®
G2 Controller
- The compressor package features the ASG2 controller, which integrates all
the control functions under microprocessor control - see Fig 4-1 for general detail of the controller keypad
and display. Controller functions include safety and shutdown, compressor regulation, operator control
and advisory/maintenance indicators. The keypad and display provides a logical and easily operated
control of the compressor and indication of its condition. The controller is factory adjusted for the
compressor package, but allows tuning for specific applications.
Figure 4-1 – Controller Layout and Main Screen
Emergency Stop Pushbutton -
This is a maintained pushbutton, and removes power from the controller
outputs regardless of controller status. It is located on the electrical panel door, below the controller
keypad. This should be used for emergency purposes only - use the keypad [STOP] for normal controlled
stopping.
Control Transformer –
A control transformer is provided to energize the power supply from 575V
primary. A secondary fuse is provided on the control transformer. Refer to adjacent labeling for
replacement information.
Fuse Blocks –
Two fuse blocks provide line side protection for the power supply and control transformer.
Three fuse blocks provide line side protection for the cooling fan contactor.
Summary of Contents for APEX25-30A
Page 11: ...13 25 608 Page 10 Figure 1 2 COMPRESSOR ILLUSTRATION VARIABLE SPEED 304USC797 A Ref Drawing...
Page 12: ...13 25 608 Page 11 Figure 1 3 COMPRESSOR ILLUSTRATION FIXED SPEED 305USC797 A Ref Drawing...
Page 27: ...13 25 608 Page 26 Figure 4 2 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 1 of 4...
Page 28: ...13 25 608 Page 27 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 2 of 4...
Page 29: ...13 25 608 Page 28 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 3 of 4...
Page 30: ...13 25 608 Page 29 Figure 4 3 WIRING DIAGRAM VS 230 VOLT 306USC546 01 Ref Drawing Page 4 of 4...
Page 31: ...13 25 608 Page 30 Figure 4 3 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 1 of 4...
Page 32: ...13 25 608 Page 31 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 2 of 4...
Page 33: ...13 25 608 Page 32 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 3 of 4...
Page 34: ...13 25 608 Page 33 Figure 4 4 WIRING DIAGRAM VS 575 VOLT 307USC546 02 Ref Drawing Page 4 of 4...
Page 45: ...13 25 608 Page 44 Figure 4 7 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 1 of 3...
Page 46: ...13 25 608 Page 45 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 2 of 3...
Page 47: ...13 25 608 Page 46 Figure 4 8 WIRING DIAGRAM FS 575 VOLT 309USC546 01 Ref Drawing Page 3 of 3...
Page 51: ...13 25 608 Page 50 Figure 4 8 PIPING AND INSTRUMENTATION ILLUSTRATIONJ 301USC797 C Ref Drawing...
