Manual 37259C
SPM-D11 - Synchronizing Unit
Page 14/79
© Woodward
Discrete Inputs
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WARNING
There are two versions of this unit with different discrete inputs. The discrete inputs have different
maximum voltage ratings. Look at the DATA PLATE of the unit to determine the correct voltage input
ratings. Applying incorrect voltages to the discrete inputs may destroy the hardware. The voltage input
ratings are:
•
V
Cont, dig. input
=
+
/
-
18 to 250 Vac/dc
•
V
Cont, dig. input
= 12/24 Vdc
Signal device
Digital input
B
A
CB
Reply
Digital input
D
C
3
+/-18 to 250 Vac/dc
12/24 Vdc
Figure 3-8: Digital inputs
Terminal Associated
zero-terminal
Description
(to DIN 40 719 part 3, 5.8.3)
A
max
Make contact
A B
3
Enable CB
2.5 mm²
5
Enable isolated operation / dead bus start
2.5 mm²
6
7
Enable control or release power set point value 2 *
2.5 mm²
Normally closed contact
C D
4
7
Reply: CB is open
2.5 mm²
* see parameter "Terminal 6" on page 43