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JULABO SE-Z Heating Circulators User Manual

Page 70

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Electrical connections

70

/ Control output

The connector may only be used for control of a JULABO refrigerated
circulator or JULABO MVS Solenoid valve controller for cooling water.

Pin assignment:
Pin

Signal (only with attached JULABO equipment)

1

+24 V (I max. current 25 mA)

2

0 V

3

Alarm relay

4

Reserved - do not use!

5

Cooling pulse

ALARM

Alarm output

(for external alarm signal)

This potential-free change-over contact is activated in case of an alarm
when pins 2 and 3 are connected.

Switching capacity

max. 30 W / 40 VA

Switching voltage

max. 125 V

∼/−

Switching current

max. 1 A

Functional description see page 64

AK

1

2

3

STAND-BY

STAND-BY input

(for external emergency switch-off)

Pin assignment:

Pin

Signal

1

not connected

2

5 V / DC

3

0 V

Functional description see page 6

1

2

3

4

5

6

REG+E-PROG

Programmer input / temperature recorder output

Pin

Signal

1 Voltage output

Channel 1

0 ... 10 V

2 Voltage output

Channel 2

0 ... 10 V

3 GND for outputs

0 V

4 Programmer input

EPROG

0 to 10 V / 0 to 20 mA

5 Current output

Channel 3

0 to 20 mA / 4 to 20 mA

6 GND for Progammer

0 V

Functional description see page 61