CT terminals specification
CT number 3 (one for each phase)
The AAF burden equals 2 mΩ
Secondary current rating 1 A or 5 A (hardware set-up)
Accuracy Class 0.5 or better
Digital inputs
Programmable digital inputs 2 (4)
Terminal number 18, 19, 27
1)
, 29
1)
Logic PNP or NPN
Voltage level 0-24–V DC
Voltage level, logic 0 PNP <5 V DC
Voltage level, logic1 PNP >10 V DC
Voltage level, logic 0 NPN >19 V DC
Voltage level, logic 1 NPN <14 V DC
Maximum voltage on input 28 V DC
Input resistance, R
i
approx. 4 kΩ
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
Control card, RS485 serial communication
Terminal number 68 (P, TX+, RX+), 69 (N, TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
The RS485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Digital output
Programmable digital/pulse outputs 2
Terminal number 27, 29
1)
Voltage level at digital/frequency output 0–24 V
Maximum output current (sink or source) 40 mA
1) Terminal 27 and 29 can also be programmed as input.
Control card, 24 V DC output
Terminal number 13
Maximum load 200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as the analog and digital
inputs and outputs.
Surroundings
Enclosure IP21, IP54
Vibration test 1.0 g
Relative humidity 5% - 95% (IEC 721-3-3; class 3K3 (non-condensing) during operation
Aggressive environment (IEC 60068-2-43) H
2
S test
class kD
Test method according to IEC 60068-2-43 H
2
S (10 days)
Ambient temperature
- with derating maximum 50 °C
- at full continuous output current max. 40 °C
Minimum ambient temperature -10 °C
Temperature during storage/transport -25 to +65 °C
Maximum altitude above sea level without derating 1000 m
Maximum altitude above sea level with derating 3000 m
EMC standards, Emission EN 61800-3-4
EMC standards, Immunity
EN 61000-6-1/2,
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
Specifications Operating Instructions
82 Danfoss A/S © 09/2014 All rights reserved. MG90V302
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