SECTION 2 —INTRODUCTION
SSC-500 Hydraulic Press Solid-State Control
Rockford Systems, LLC
Call: 1-800-922-7533
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Features of the SSC-500 Control - Hydraulic Press
• Redundant/cross-checking microprocessors
from different manufacturers
• Two-hand anti-tiedown and concurrent operation
• 1 x 16-character LCD display/membrane keypad
operator interface
• Two-speed solenoid valve support
• Four (4) user programmable diagnostic inputs
• Interface provided for light curtain(s)
• Provisions for electrically interlocking safety devices
• Redundant logic system microprocessor
• Isolated microprocessor logic power supply
• Redundant monitored SSR (Solid-State Relay)
with captive contact master safety relay
• Unpluggable saddle-clamp circuit board terminal strips
• Supports redundant solenoid valves (self-checking)
• Fused SSR (Solid-State Relay) outputs eliminate
costly relay replacement (field-replaceable fuses)
• Seven-digit stroke counter and batch counter with preset
• LCD display choices while in run mode: Mode,
Stroke Counter, or Batch Counter
Safeguard Interlocks and Other Types Of Interlocks
Safeguard Interlocks
The machine will not operate or must not be operated until you either:
(1)
Electrically interlock or
(2)
Mechanically guard the machine’s point of
operation with a safeguarding system or device.
When an electrically interlocked method of safeguarding the point of operation is chosen, connect the interlock to the safeguard interlock terminals
(P7-5 and P7-6) in the control box (see page 16), and as shown on the control wiring schematic (wire numbers 82 and 83).
Point-of-operation electrically interlocked safeguards, when opened, prevent or stop normal machine operation during operator cycling modes.
Examples of these types of interlocks are barrier guard interlocks and gate device interlocks.
When a mechanical guard or device (nonelectrically interlocked) is chosen, the safeguard interlock terminals (P7-5 and P7-6) are not used. In order
for the machine to operate with the use of a mechanical guard or device, the safeguard interlock terminals must be connected.
The mechanical guard or device must be properly installed, used and maintained and must always prevent all
personnel from bodily injury.
If the mechanical guard or device is not used, is removed, or is defeated, an electrically interlocked method of
safeguarding must be used and connected to the safeguard interlock terminals (P7-5 and P7-6).
Never operate this machine without point-of-operation safeguarding.
OTHER ELECTRICAL INTERLOCKS
There are basically two types of electrical interlocks as applied to machine control circuitry:
• Interlocks for the purpose of personnel protection, as explained previously.
• Interlocks intended for the purpose of protecting the machine and its control components.
There are other locations for interlocks that, when opened, prevent all machine functions. Examples of these types of interlocks are safety block
electrical cut-off systems, lubricating systems, die protection equipment, and tonnage monitoring systems.
Be sure to connect the various electrical interlocks to the proper terminals (in the control box) according to the machine wiring schematics. If your
schematics do not include these electrical interlocks, please send this information to the factory and they can be added to your drawings. There is
an additional charge for this service.
Modes of Operation
Standard
Optional
• Two-Hand Inch
• One-Hand Trip (used in
conjunction with a light curtain)
• Foot-Single Stroke
• PSDI
• Automatic (hand only)
• Auto Single
