SECTION 3 — INSTALLATION OF COMPONENTS
SSC-500 Hydraulic Press Solid-State Control
Rockford Systems, LLC
Call: 1-800-922-7533
23
(Continued on next page.)
Other Installation Considerations
WIRING
National Electrical Code practices, including NFPA-79, are usually followed for wiring the control system, especially color coding and the use of
numbered wire markers on
both ends
of
every wire
. Color coding is Black for line voltage and control at line voltage, Red for 120 VAC control
circuits, Blue for 24 VDC control circuits, White for current carrying ground (commonly referred to as the “Neutral”), and Green for any equipment
grounding conductor. All terminal blocks in the control cabinet are color coded for easy identification.
1.
Install and wire the main disconnect switch (unless one already exists or is furnished in a custom control) using black wire. Follow wiring instruc-
tions shown on the electrical schematics. Make certain this switch is capable of being locked in the “
Off
” position
only
.
2.
Install and wire the motor starter (unless one already exists or is installed in a custom control box) using black wire for the power; red and white
wires for the coil and interlock circuit; and blue for the motor forward connection to the SSC-500 control module.
3.
All necessary outputs from the SSC-500 control module are wired from the green printed circuit board to the terminal block. All necessary inputs
need to be wired to the green printed circuit board terminal strip P2 for installation.
4.
Run two black power lines (any two lines) from the load side of the disconnect switch (or from the line side of the motor starter) to the control
enclosure. Connect the two black wires to the proper terminals on the control transformer (see electrical schematic or transformer nameplate
for proper connections for different primary voltages).
Note: If a custom control box with a disconnect has been provided, this step is not necessary.
5.
Run a green ground wire from the incoming system ground to the control panel.
6.
Wire the motor starter and start/stop control according to the connection schematics.
Note: If a custom control box with a starter has been provided, this step is not necessary.
Keypad/Display - Remote
If the keypad/display is furnished in a remote station, an optional seven-conductor shielded cable can be run in conduit or sealtite with other low
voltage signal conductors. This cable carries low voltage signals and should not be located near or in the same conduit or raceway with conductors
for main power feeds or motor leads. 25’ of cable is supplied as standard and can be cut to length if required. Do not splice or interrupt signals.
The cable should be wired directly into the SSC-500 control module terminal strip P5, as shown in the schematic prints that were sent with the
control box. Please contact Rockford Systems, LLC if a longer cable is required.
Palm Button Assembly
These palm buttons are normally wired as an assembly with the blue wires routed from the control box to the nearest palm button and then the
others, as required, within the units. Wires between the two “run/inch” buttons are not connected back to the control box. If “Touchdown™” (prox-
imity) palm buttons are furnished, please refer to the enclosed Installation Manual No. KSL-071 and the connection print.
If the palm button assembly is not bolted directly to the machine frame, then a separate green ground wire should be run from the control box to
all palm buttons. Attach one end of the wire to each mounting box by a lug under one of the mounting bolts and the other end of the wire to the
“GND” terminal in the control box to assure proper grounding.
These operator controls should be mounted in a convenient location, keeping ergonomics in mind. To comply with ANSI Standards for “two-hand
controls,” the “run/inch” buttons must be located according to the “minimum safety distance” requirements of each individual machine as defined
by the standard (see page 19 of this manual). A stop-time measurement unit is necessary for checking stopping time before installation begins.
The palm button assembly must be fixed at the proper safety distance so that only a supervisor or safety engineer is capable of relocating them.
Supervisory Control Station
(See page 21)
When two or more two-hand or foot switch operating stations are required on one machine, one supervisory control station is required at each
operator station. This remote control station consists of one “station on” indicator light and a key-locked “off/on” selector switch in an enclosure.
The “on” position allows the operator to use that station and the “off” position deactivates only that station. If all the supervisory control stations are
in the “on” position, all two-hand palm buttons must be depressed within the timing period set in the Anti-Tiedown (page 29) program in order to
initiate a machine stroke. These supervisory control stations must be wired to prevent actuation of the clutch if all operating stations are turned off
and controls are operational. See wiring schematics for proper wiring of these supervisory control stations.
