HIMA ELOP II Programmable Electronic System (PES) Programming System Software

Description

ELOP II An short-circuit within the actuator circuitry (including the actuator) results in a high voltage drop

( output voltage of DO) through the shunt, which causes the short-circuit to be detected

(maximum resolution of AI, see Table 7). ELOP II The overvoltage protection of the analog inputs is

activated at approximately 15 V.

A protective circuit consisting of a Z-diode and series resistor must be implemented to avoid an

overload of the internal overvoltage protection.

ELOP II Normal operation (no short-circuit):

Umax = Usolenoid valve + Ushunt = 26.8 V = 23.65 V + 3.15 V

The voltage Ushunt is also present on the protective circuit consisting of Z-diode and series

resistor.

The Z-diode does not switch on at 3.15 V, i.e., the voltage drop of 3.15 V on the shunt is

present on the analog input.

Short-circuit:

Umax = Usolenoid valve + Ushunt = 26.8 V = 0 V + 26.8 V

If a short-circuit occurs in the external circuit (actuator or line), the voltage from DO is dropped

completely at the shunt.

The switching threshold of the overvoltage protection ELOP II of AI is approximately 15 V.

The Z-diode should become conductive at 12 V such that no more than 12 V is present on AI

and the entire scaling range of AI is available.

The maximum voltage drop Udiode on the series resistor Rdiode of the Z-diode results from:

Udiode = 26.8 V – 12 V = 14.8 V

The current through the Z-diode should be limited to 20 mA (specification of the Z-diode). This

results in a minimum value for the series resistor of:

Rdiode = 14.8 V / 20 mA = 740 

The value for Rdiode can be set to 1 K.

ELOP II This resistance limits the maximum current through the Z-diode to approximately 15 mA.

A short-circuit within the red-colored area (see circuit diagram) can be monitored through the

voltage drop on the shunt Rshunt, i.e., the input value of AI, see Table 7.

To allow short-circuit monitoring, the value of AI must be evaluated in the logic of the user

program.

Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
(2) Stable channel and more guaranteed supply
Lead time problem
(1) For the spot products in stock, the delivery can be arranged on the same day after the contract payment is signed
(2) Order products and deliver according to the quoted delivery date
Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
Spot stock, fast response, reduce user capital investment, improve spare parts utilization, spare parts replacement!

Details: If you need urgent delivery orders, please feel free to contact us, and we will try our best to meet your needs.
Price problem: If you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.
Contact us:+86 181 0693 7731
Mail: 2872270648@qq.com
Contact: Chen