Please note that the relay contacts used in the CLK2 circuit are rated at 10 amps. The combined load of the correction circuit and the run circuit should not exceed 8 amps. In general, 20–35 analog clocks can be operated on a single string. This number depends on the clock style and the distances involved. To estimate clock loads for Dukane 24SS series clocks, see the Dukane Analog Clock Installation Guide (document number 402-455).

X = Normally open contact

I = Normally closed contact

1 = V250LA4 MOV or equal

 

 

 

RELAY

 

 

 

RELAY

 

 

 

 

 

 

 

K5 (K7)

 

 

 

K6 (K8)

 

 

 

 

 

 

 

 

x

 

x

I

 

I

 

 

 

 

 

 

 

x

 

 

CLK1 OR CLK2

 

 

 

 

 

 

 

MASTER CLOCK

1

2

3

4

5

6

7

8

FIELD CONNECTIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CORRECTION CIRCUIT

10 ASB MAX.

 

 

 

 

 

 

 

TO CORRECTION COIL

 

 

 

 

 

 

 

1

24 OR 120 VAC

 

 

 

 

 

 

 

RUN CIRCUIT TO

 

 

1

 

 

 

 

 

ANALOG CLOCK MOTOR

 

 

 

 

 

 

 

 

NEUTRAL NEUTRAL

Figure B-1

Three-Wire Synchronous (59th Minute, Dukane 24SS)

24A715/24A715M Master Clock Installation Manual

B-3