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HARDWARE
HIDs with latching relay use 2 K 75W resistors, while HIDs without latching relay use 1 K 100 W resistors.
FIGURE 3-4 INPUT CONNECTIONS
Current flows through stabilizing resistors into current input of the overcurrent module. Once high-speed overcurrent
module trips, latching relay contacts short-circuit stabilizing resistor plus current input. In this way, excessive heating
causing damage to resistors is avoided. MOV is used to avoid over voltages damaging current input, limiting voltage
to 1900V.
WARNING
In order to prevent personal damage connect the relay to ground.
For this purpose, please follow the safety instructions below
GEK-113064
HID High Impedance Differential Module
3-5
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