Siemens SIROTEC Device Manual

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8.35 L87, insulation monitoring
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
475
Table 8- 58 Meaning of the controls and displays on the insulation monitor
Position
Meaning
1 INFO key: Requests standard information/
ESC key: Back menu function
2 TEST key: Brings up self-test/
Arrow key up: Parameter change, scroll function
3 RESET button: Deletes insulation and fault messages (A-Isometer only)
Arrow key down: Parameter change, scroll function
4 Menu key: Brings up menu system/
Enter key: Confirms parameter change
5
Alarm LED 1 is lit: Insulation fault, first alarm threshold reached
6
Alarm LED 2 is lit: Insulation fault, second alarm threshold reached
7
LED is lit: System error present
Connecting
Table 8- 59 Connections on the insulation monitor
Terminal
Technical specifications
A1
Supply voltage via 6 A melting fuse:
88 to 264 V AC, 77 to 286 V DC
A2
L1
Connection of the 3 ph. AC system to be monitored
L2
AK
Connection to coupling device
KE
PE connection
T1
External test button
T2
External test button
R1
External reset key (NC contact or wire jumper, otherwise the fault code is not stored)
R2
External reset key (NC contact or wire jumper)
F1
STANDBY with aid of F1, F2 function input:
No insulation measurement when the contact is closed
F2
M+
External kΩ display, analog output (0 μA to 400 μA)
M- External kΩ display, analog output (0 μA to 400 μA)
A
Serial interface RS 485
(termination by means of 120-ohm resistor)
B
11
Signaling relay ALARM 1 (mid-position contact)
12
Signaling relay ALARM 1 (NC contact)
14
Signaling relay ALARM 1 (NO contact)
21
Signaling relay ALARM 2 (mid-position contact)
22
Signaling relay ALARM 2 (NC contact)
24
Signaling relay ALARM 2 (NO contact)
Max. connectable cross-section #14 AWG (2.5 mm²)

Siemens SIROTEC Specifications

General

Brand	Siemens
Model	SIROTEC
Category	DC Drives
Language	English