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13. OPTIONS AND AUXILIARY EQUIPMENT
13.2.4 Relays
The following relays should be used with the interfaces.
Interface Selection example
Input signals (interface DI-1) signals To prevent defective contacts, use a relay for small signal
(twin contacts).
(Ex.) Omron: type G2A, MY
Relay used for digital output signals (interface DO-1) Small relay with 12VDC or 24VDC of rating 40mA or less
(Ex.) Omron: type MY
13.2.5 Surge absorbers
A surge absorber is required for the electromagnetic brake. Use the following surge absorber or equivalent.
Insulate the wiring as shown in the diagram.
Maximum rating
Permissible circuit
voltage
Surge
immunity
Energy
immunity
Rated
power
Maximum
limit voltage
Static
capacity
(reference
value)
Varistor voltage
rating (range) V1mA
AC[Vma] DC[V] [A] [J] [W] [A] [V] [pF] [V]
140 180
(Note)
500/time
5 0.4 25 360 300
220
(198 to 242)
Note. 1 time 8 20 s
(Example) ERZV10D221 (Matsushita Electric Industry)
TNR-10V221K (Nippon chemi-con)
Outline drawing [mm] (ERZ-C10DK221)
13.5
1
6
.
5
3
.
0
o
r
l
e
s
s
3
0
.
0
o
r
m
o
r
e
Crimping terminal
for M4 screw
Vinyl tube
4.7 1.0
0.8
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