ESE ES-562U Handbuch für Betrieb und Wartung - Seite 3

Blättern Sie online oder laden Sie pdf Handbuch für Betrieb und Wartung für Zeitschaltuhr ESE ES-562U herunter. ESE ES-562U 7 Seiten. Combination clock / timer

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The ES-562/564U is based on a single micro-processor chip, timer IC, Z4. A +5 volt DC supply consisting

of T1, diodes D1-D3, capacitors C1-C6 and regulator Z2 power it. T1 provides 6 VAC to the voltage

doubler circuit composed of D1-D2, C1-C4. Approximately +12 to +15 volts DC is developed across C1

and C3, which is regulated to 5 volts by Z2. This is used to power the clock/timer logic. A separate 6 VDC

supply is used to supply the segment driver chip Z6. IC Z4 provides all timing and control functions and

generates serial control signals for the display driver chips, Z6 and Z7. The display operates in multiplex

mode. Z6 and Z7 receive segment and digit drive data from Z4 via a data line (Z4 pin 28), a clock line (Z4

pin 27) and a strobe line (Z4 pin 26). A 50 or 60 Hz clock signal is taken from T1, logic-level converted by

Q1 and used for the counting timebase. Z4 also provides the optional Serial Timer Code, which is buffered

by IC Z3.

CIRCUIT DESCRIPTION

ES-562/564U Option "R" Connector Designations (DB9)

ES-562/564U Front View

TIMER

DOWN

12 59 59

Function

Select/Reset

Set/Stop

Down

Clock

Timer

Relay Contact (optional)

Ground

SET

SELECT

CLOCK

STOP

RESET

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