SIGMATEK MDP 101-1 User Manual

MDP 101-1
05.06.2020 Page 59
The Maximum cable length is 10 m, with the exception of the following encoders:
Type code
description
Motor type
Encoder Type
Max. Length
LA
AKM2 – AKM3
ECI 1118
8,2 m
LB
AKM2 – AKM3
EQI 1130
6,9 m
DB
AKM2 – AKM4
EQN 1125
9,4 m
When using EnDAT
®
with the MDD 100, the cable length must be taken into consideration
(voltage drop)!
Formula for calculating the cable length (max. 10 m):
(A * U) / (ρ * I * 2) = Lcable
Example of cable length calculation:
For AKM2xx - xxxxDBxx (ECN 1125 encoder with 4.75 V minimum supply and 14 A
maximum current):
Maximum voltage drop = 5 V – 4.75 V = 0.25 V
(0.18 mm² * 0.25 V) / (0.017 Ω * mm²/m * 0.14 A * 2) = 9.4 m
Table for EnDat
®
encoder cable lengths:
Type code
description
Motor type
Encoder Type
Encoder
Performance
Max. Length
DA
AKM2-4
ECN 1113
4,75 V 110 mA
10 m
DA
AKM5-8
ECN 1313
3,6 V 110 mA
10 m
DB
AKM2-4
EQN 1125
4,75 V 140 mA
9,4 m
DB
AKM5-8
EQN 1325
3,6 V 140 mA
10 m
LA
AKM2-3
ECI 1118
4,75 V 160 mA
8,2 m
LA
AKM4-8
ECI 1319
3,6 V 170 mA
10 m
LB
AKM2-3
EQI 1130
4,75 V 190 mA
6,9 m
LB
AKM4-8
EQI 1331
3,6 V 170 mA
10 m
Derivation of the formula:
R = U / I Maximum resistance, calculated via the encoder power
R = ρ * Lwire / A wire resistance over the entire wire length
Applied:
R = ρ * Lwire / A
Solved for the maximum wire length calculation:
(A * U) / (ρ * I) = Lwire

SIGMATEK MDP 101-1 Specifications

General

Brand	SIGMATEK
Model	MDP 101-1
Category	Power Supply
Language	English