INST.No.INE-868G [DB600] General Instruction Manual
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7-7 Accessories
7-7-1
Terminal cover
A terminal cover is available to prevent electric shock and protect the terminals.
[DB630] [DB650] [DB670]
DB630 DB650 DB670
Model
RZ-TC2 RZ-TC3 RZ-TC4
7-7-2
Contact protection element
Connect a contact protection element to the relay output terminal of the instrument for noise removal.
Make sure to connect to the load via a buffer relay or contact protection element for relay outputs such as
ON-OFF pulse, ON-OFF servo and event outputs.
We prepare the following contact protection elements. Use one if necessary.
Model Specification Open/close current Application
CX-CR1 0.01μF + 120Ohm 0.2A or less Light loads
CX-CR2 0.5μF + 47Ohm 0.2A or more Heavy loads
Note that a leak current is generated as shown below when the contact protection elements are used,
depending on the load power supply.
Model
Power voltage: 200V Power voltage: 100V
50Hz 60Hz 50Hz 60Hz
CX-CR1 Approx. 0.8mA Approx. 1.0mA Approx. 0.4mA Approx. 0.5mA
CX-CR2 Approx. 42mA Approx. 50mA Approx. 21mA Approx. 25mA
Relay output type (A) Blue (B) Red (C) Red
ON-OFF pulse output
COM N.O. (not wire)
ON-OFF servo output type
Servo M1 Servo M2 Servo M3
Event output
COM EV (not wire)