Heidolph Pump Heads - Manual (Page 59)

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59
8.1. Interface (fig. 46)
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This built-in analog interface allows external pump control.
Control voltage 0 - 10 volts equals a rotational speed of 0 to max.
control voltage PD 5101 PD 5106
0 - 0,9 V 0 [1/min] 0 [1/min]
1 V 5 [1/min] 24 [1/min]
10 V 120 [1/min] 600 [1/min]
Or control current 4 - 20 mAmps for rotational speed of 0 to max.
control current PD 5101 PD 5106
0 - 4.9 mA 0 [1/min] 0 [1/min]
5 mA 5 [1/min] 24 [1/min]
20 mA 120 [1/min] 600 [1/min]
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Interface socket wiring (37):
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Interface socket is located on the pump drive's rear panel; pin wiring:
PIN 1 = +5 V
PIN 2 = Start/Stop
PIN 3 = 0-I0 V
PIN 4 = sense of rotation
PIN 5 = 0 V (GND)
PIN 6 = 4-20 mA
view on terminal end
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Use IP 67 plug connectors only (6-pin 99-5121-15-06) Heidolph P/N 14-010-006-81 not to
void splash protection.
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Make sure, plug connectors are installed properly.
fig. 46
TTL-level 0 V = CW rotation, TTL-level 5 V = CCW rotation.
A 5 volts TTL signal turns item ON, next signal to follow turns item OFF. This function is
available all the time (in internal mode either).
For triggering sense of rotation and ON / OFF function, a 5 volts pin is available in the
interface connector which allows potential-free switching.
The analog interface is recognized at a level of 0.2 volts or a 4 mAmps current; This mode is
confirmed by "EA" in the display. As long as the pump drive is controlled via the analog
interface, "Start/Stop" key will be the only active key on the item.