5
vacon • 41
ELECTRICAL CONNECTION
Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205
The board can only be placed in slot C.
OPTD7 connections
OPTD7 board specification
Transformer primary/
input voltage range
Min 380VAC -15%
Max 15%
Transformer ratio
Primary : secondary
60:1
Transformer secondary/
output voltage range
14V rms
Between the terminals L1/L2/L3.
Input impedence
L1/L2 =50kOhm
L1/L3 = 25kOhm
L2/L3 = 25kOhm
L3 is internal virtual common
Cable recommendation
Max 1.5 mm
2
, shielded
From transformer output to OPTD7
Measurement resolution
10 bit
Voltage measurement
Accuracy
0.2%