Micromod Micro-DCI: 53SL5100B Single Loop Controller - Manual (Page 90)

53SL5100B Single-Loop Controller
INSTRUCTION MANUAL
DC Power: 3A, 250 V, Slow Blow BEL Type 5TT3
For additional information, contact MicroMod Automation.

NOTE: When communicating with MicroMod for replacement of the main PCB, reference the
unit’s serial number to ensure the correct replacement assembly is supplied. The necessary ordering
information is provided on the instrument data tag and on the manufacturing specification sheet
supplied with that particular controller.
In the event of a hardware malfunction, a replacement PCB can be quickly substituted for the defective
assembly to minimize downtime. Contact MicroMod for instructions before returning equipment.
The defective PCB should be carefully packaged and returned, shipping charges prepaid, to the Repair Dept.
of MicroMod Automation. Do not wrap PCBs in plastic, as it can cause static damage. It is suggested that
the defective PCB be returned in the special bag in which the replacement module was supplied.
12.3 Calibration
The instrument’s analog inputs (ANI0 and ANI1) and output (ANO0) are extremely stable. They normally do
not require recalibration. If it becomes necessary to recalibrate the instrument, due to the inadvertent change
of the stored calibration values, then this can be accomplished by altering their respective datapoints. The
calibration span and
zero datapoint locations are as follows:
Analog Signal Calibrate Zero Calibrate Span Analog Signal
ANI0 B263 C296 ANI0
ANI1 B264 C297 ANI1
ANO0 B267 C300 ANO0
 NOTE: The Spans have a nominal value of 1.0 and can be adjusted up or
down within the range of 0.8 to 1.2. The Zeros have a nominal value of 128 and
can be adjusted up or down within the range of 100 to 150.
12.4 Error and Hardware Malfunction Messages
Error Messages:
• LOGO - The controller is in the suspend state (also called FIX 0 because datapoint location B00 = 0).
Hardware Malfunction Messages: ·
 Entire Display Flashes - The watchdog timer has timed out.
 CPU RAM FAILURE - IC U1 is bad.
 ROM CHKS FAILURE - IC U3 is bad.
12.5 Resetting the Instrument
The instrument can be reset either by cycling the power, or by carefully pressing the reset button by inserting
a thin wire, such as a paper clip, through the small hole in the upper left corner of the front bezel. (See Figure
1-2 for the location of the reset hole.) When the instrument restarts, it immediately checks to determine if any
of the horizontal keypad push buttons are held pressed.
 If the F1 push button is pressed and held during controller reset, the controller enters a factory test
mode. To exit test mode, reset the controller again using the thin wire with no push buttons pressed.
 If the F2 push button is pressed and held during controller reset, the controller database is set to the
defaulted values. (Also called FIX 98, because setting datapoint location B00 to 98 initiates the same
operation.)
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