Watlow Series 321 Bedienungsanleitung PDF herunterladen (Seite 4)

WATLOW Series 321 User's Manual 4

Wiring

Ó

WARNING:

Possibility of

shock. There

is no isolation.

Power Wiring

Voltage Input: 120V~ (ac), nominal.

Output 1 Wiring

Output 2 Wiring

Interlock Wiring

Figure 4a –

Series 321

back view.

Figure 4b –

Series 321

back view.

Figure 4c –

Series 321

back view.

Figure 4d –

Series 321

back view.

ç

NOTE: The switch and

wiring practices used

for interlock operations

must meet U.L. Stan-

dards.

NOTE: The Interlock

must be closed for the

timer to initiate a

timing sequence.

ç

L1

L2

C

NO

C

NO

AC

1

2

L1 L2

Fuse

IL

L1

L2

C

NO

C

NO

AC

1

2

CNO

1

L1

L2

C

NO

C

NO

AC

1

2

IL

L1

L2

C

NO

C

NO

AC

1

2

CNO

2

L1

L2

C

NO

C

NO

AC

1

2

IL

L1

L2

C

NO

C

NO

AC

1

2

IL

L1

L2

C

NO

C

NO

AC

1

2

IL

IL

Displays

Figure 4e – Series 321 front display.

• Point ➀ is flashing:

Interlock is in an open condition, see

Figure 4e.

• Points ② and ➂ are not illuminated:

Timer is in a Hold/Ready condition, see

Figure 4e.

• Points ② and ➂ are illuminated:

Timer is running, see Figure 4e.

• Numeric Display is illuminated:

The Numeric Display is always active

when power is applied to the timer, see

Figure 4e.

Wiring

Stop

Start

Time Set

321

➀

➁

➂

1 2 3 4 5 6

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