OUTPUT LOGIC
H
L
Voltage pulse
or
RS-422 line
driver pulse
Output
Non-inverted
Non-inverted
Dry contact
Input
H
L
H
L
OFF
ON
H
L
Inverted
Inverted
H
L
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Open collector
Voltage pulse
RS-422 line driver pulse
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
7 – 14 with a multimeter.
3) Input:
• Check that the frequency is within the range described
below.
Dry contact, 12 V / 24 V pulse: ≤ 100 kHz
5 V pulse: ≤ 500 kHz
3.3 V pulse, RS-422 line driver pulse: ≤ 1 MHz
And also, check that it doesn’t exceed the maximum fre-
quency of output signal.
• When operating at frequencies close to the maximum fre-
quency, use pulse duty at approx. 50%.
4) Output: Check that the load voltage meets the specifica-
tions described in the table below.
OUTPUT SIGNAL
LOAD VOLTAGE
Open Collector
50 V DC ≤ 100 mA
Voltage Pulse
3.3 V
≥ 660 Ω
5 V
≥ 1 kΩ
12 V
≥ 2.4 kΩ
5) Open the front cover to check the input pulse status with
monitor LEDs.
Phase A: Green, Phase B: Red, Input low: LED on
(LED on/off is not defined at input opened.)
■
FRONT VIEW
Input Monitor LED Phase B (Red)
Input Monitor LED Phase A (Green)
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
WRPP
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-2222 Rev.1 P. 4 / 4
