Hitachi L100 Welding System User Manual


 
Example Wiring Diagram
Operations
and Monitoring
4–6
Specifications of Control and Logic Connections
The control logic connectors are located just behind the front panel half-door. The relay
contacts are accessible behind the main door. Connector labeling is shown below.
Specifications for the logic connection terminals are in the following table:
Note 1: The two terminals [L] are electrically connected together inside the inverter.
Relay
contacts
Logic
inputs
Analog
inputs
Analog
output
Logic
outputs
12345L
P24
12 11LH O
OI FM
CM2
AL0
AL2AL1
Terminal Name Description Ratings
[P24] +24V for logic inputs 24VDC, 30 mA max (do not short to terminal L)
[1], [2], [3], [4], [5] Discrete logic inputs 27VDC max. (use P24 or an external supply refer-
enced to terminal L)
[L] (top row) *1 GND for logic inputs sum of input 1-5 currents (return)
[11], [12] Discrete logic outputs 50mA maximum ON state current,
27 VDC maximum OFF state voltage
[CM2] GND for logic outputs 100 mA: sum of 11 and 12 currents (return)
[FM] PWM (analog/digital) output 0 to 10VDC, 1 mA, PWM and 50% duty digital
[L] (bottom row) *1 GND for analog inputs sum of OI, O, and H currents (return)
[OI] Analog input, current 4 to 19.6 mA range, 20 mA nominal
[O] Analog input, voltage 0 to 9.6 VDC range, 10VDC nominal,
input impedance 10 k
[H] +10V analog reference 10VDC nominal, 10 mA max
[AL0] Relay common contact 250 VAC, 2.5A (R load) max.,
250 VAC, 0.2A (I load, P.F=0.4) max.
100 VAC, 10mA min.
30 VDC, 3.0A (R load) max.
30 VDC, 0.7A (I load, P.F.=0.4) max.
5 VDC, 100mA min.
[AL1] Relay contact, normally
closed during RUN
[AL2] Relay contact, normally open
during RUN